12.18 even with engine dying!!!
Thread Starter
Le Mans Master
Joined: Feb 1999
Posts: 9,930
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
12.18 even with engine dying!!! Possible ignition
Well, as I passed the 1/8mile , 1.74 60' 7.6 at 92 mph,(still ran a 12.18 at 94 mph 
) the motor just quit and spewed fuel. The ignition apparently died. I then tried to restart and the engine made no mechanical noises, but when it tried to fire it sounded like a major misfireing going on. The Opti still is in with cap and rotor, but I use a DELTEQ.
SO, best guesses are authorized. Tommorow, I may look into it, or I may not. Really tired right now.
) the motor just quit and spewed fuel. The ignition apparently died. I then tried to restart and the engine made no mechanical noises, but when it tried to fire it sounded like a major misfireing going on. The Opti still is in with cap and rotor, but I use a DELTEQ. SO, best guesses are authorized. Tommorow, I may look into it, or I may not. Really tired right now.
Last edited by steve40th; Oct 8, 2005 at 05:00 AM.
Safety Car
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
Originally Posted by steve40th
Well, as I passed the 1/8mile , 1.74 60' 7.6 at 92 mph,(still ran a 12.18 at 94 mph ) the motor just quit and spewed fuel. The ignition apparently died. I then tried to restart and the engine made no mechanical noises, but when it tried to fire it sounded like a major misfireing going on. The Opti still is in with cap and rotor, but I use a DELTEQ.
SO, best guesses are authorized. Tommorow, I may look into it, or I may not. Really tired right now.
) the motor just quit and spewed fuel. The ignition apparently died. I then tried to restart and the engine made no mechanical noises, but when it tried to fire it sounded like a major misfireing going on. The Opti still is in with cap and rotor, but I use a DELTEQ. SO, best guesses are authorized. Tommorow, I may look into it, or I may not. Really tired right now.
Le Mans Master
Joined: Dec 2004
Posts: 5,789
Likes: 8
From: Myrtle Beach SC
St. Jude Donor '05-'06
Originally Posted by bogus
dude... you have had nothing but problems with that ignition!
That run is pretty damned FAST tho...
That run is pretty damned FAST tho...
This ain't your year.No Codes? I doubt it is the opti if you have no codes it can only die with no codes if your cap goes south.Since you are using delteq if it were bad I would expect a high/low res code.Wonder if the Plug wires or ICM might be the source?
Safety Car
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
Originally Posted by Redeasysport
This ain't your year.No Codes? I doubt it is the opti if you have no codes it can only die with no codes if your cap goes south.Since you are using delteq if it were bad I would expect a high/low res code.Wonder if the Plug wires or ICM might be the source?
My last Opti Died with no codes what so ever, and after only two days and I am running the Delteq.
Thread Starter
Le Mans Master
Joined: Feb 1999
Posts: 9,930
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
I have never had codes either with Optis. I litterallywas in the dark at the end of the track and some friends helped push me about a half a mile out of the track so the flat bed would get me. I havent checked one thing yet. I will take a valve cover off, even though there was no noises. I will look at Plugs, wires etc. Yesterday, before the tripp out it was idleing kinda rough, not bad just questionable and running a little rich. I thought it was the IAC mod I was doing to alow the motor run better with the AC on(different thread). SO off I went. Is it possible for the opti to take out sensor?
SO many questions so little care factor right now. In laws from Charleston are here, and I am just frustrated to no end.
SO many questions so little care factor right now. In laws from Charleston are here, and I am just frustrated to no end.
Thread Starter
Le Mans Master
Joined: Feb 1999
Posts: 9,930
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
Okay here is what I found so far.
Plugs a little black !
Wires all good, and all sensors plugged in, nothing broken.
No codes
Oil Black, no water in oil
No OIl in water
Rockers and springs all good, nothing broke or loose.
Looked at yesterdays runs prior to breakage:
L LTerms were 160(lean)
R Lterms were 108(rich)
Wond if ignition was breaking already, as it was run prior to on dyno to 6300rpms 3 times, which I think the OEM may be overwhelmed by, and may have been ready to die .
Fuses good.
Plugs a little black !
Wires all good, and all sensors plugged in, nothing broken.
No codes
Oil Black, no water in oil
No OIl in water
Rockers and springs all good, nothing broke or loose.
Looked at yesterdays runs prior to breakage:
L LTerms were 160(lean)
R Lterms were 108(rich)
Wond if ignition was breaking already, as it was run prior to on dyno to 6300rpms 3 times, which I think the OEM may be overwhelmed by, and may have been ready to die .
Fuses good.
Le Mans Master
Joined: Dec 2004
Posts: 5,789
Likes: 8
From: Myrtle Beach SC
St. Jude Donor '05-'06
Yes an Opti can die with no codes but one that is not using the cap&rotor as the delteq does could only die with a high/low re code 16/36 as far as I can tell.Either the signal is there for the delteq/ECM or it is not.
Your BLM's were all screwed up.Looks like that could be the source of the problem or at least a clue to what was going on.I am not sure how much above 128 is too lean and can cause damage but I bet 160 is close to it.
If you can get a "O" scope you can check the opti for a signal.93Jetjockey just did this recently do a search on it.
I wish I could tell you something more helpful but it looks like it is more than just the Opti based on the scans.Did you pull the rotor when you did the conversion? Spinning those rotors up to 6300rpm is not a good thing but might not hurt short term.
Your running one of Alvin's tunes right? I would be sending him the scans just before the failure and see what he says.Good Luck
Your BLM's were all screwed up.Looks like that could be the source of the problem or at least a clue to what was going on.I am not sure how much above 128 is too lean and can cause damage but I bet 160 is close to it.
If you can get a "O" scope you can check the opti for a signal.93Jetjockey just did this recently do a search on it.
I wish I could tell you something more helpful but it looks like it is more than just the Opti based on the scans.Did you pull the rotor when you did the conversion? Spinning those rotors up to 6300rpm is not a good thing but might not hurt short term.
Your running one of Alvin's tunes right? I would be sending him the scans just before the failure and see what he says.Good Luck
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Thread Starter
Le Mans Master
Joined: Feb 1999
Posts: 9,930
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
Originally Posted by Redeasysport
Yes an Opti can die with no codes but one that is not using the cap&rotor as the delteq does could only die with a high/low re code 16/36 as far as I can tell.Either the signal is there for the delteq/ECM or it is not.
Your BLM's were all screwed up.Looks like that could be the source of the problem or at least a clue to what was going on.I am not sure how much above 128 is too lean and can cause damage but I bet 160 is close to it.
If you can get a "O" scope you can check the opti for a signal.93Jetjockey just did this recently do a search on it.
I wish I could tell you something more helpful but it looks like it is more than just the Opti based on the scans.Did you pull the rotor when you did the conversion? Spinning those rotors up to 6300rpm is not a good thing but might not hurt short term.
Your running one of Alvin's tunes right? I would be sending him the scans just before the failure and see what he says.Good Luck
Your BLM's were all screwed up.Looks like that could be the source of the problem or at least a clue to what was going on.I am not sure how much above 128 is too lean and can cause damage but I bet 160 is close to it.
If you can get a "O" scope you can check the opti for a signal.93Jetjockey just did this recently do a search on it.
I wish I could tell you something more helpful but it looks like it is more than just the Opti based on the scans.Did you pull the rotor when you did the conversion? Spinning those rotors up to 6300rpm is not a good thing but might not hurt short term.
Your running one of Alvin's tunes right? I would be sending him the scans just before the failure and see what he says.Good Luck
I am curious what part is actually the part DELTEQ uses and if it possible if the rotor could have broke so bad to hurt it? And is the sensor the Delteq uses turned by the camshaft or is driven by soemthing within the OPTI.
The rotors are designed for the LT4 to be turned to 6300rpm, as that is there redline, correct. Regardless, something is a miss, heopefully it is something simple. I dont know how the tune could be wrong, it ran before to the track, about 15 miles.
Safety Car
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
Originally Posted by Redeasysport
Yes an Opti can die with no codes but one that is not using the cap&rotor as the delteq does could only die with a high/low re code 16/36 as far as I can tell.Either the signal is there for the delteq/ECM or it is not.
If you can get a "O" scope you can check the opti for a signal.93Jetjockey just did this recently do a search on it.
If you can get a "O" scope you can check the opti for a signal.93Jetjockey just did this recently do a search on it.
Thread Starter
Le Mans Master
Joined: Feb 1999
Posts: 9,930
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
Originally Posted by FD2BLK
I hate to disagree but since I was running the delteq when my last Opti died with no codes I know it can and does happen. One thing to keep in mind, and Pete will tell you this, is that the Delteq is a lot more picky about the quality of the Res signal then the stock system. I would check all the connections first and then perform a spark test using one of the $5 testers from Auto Zone that allows you to set the gap on the tester. If no spark is present then you know you have an ignition problem. Then go to Page 15 http://www.delteq.com/Manual_r3.pdf here and see what the Delteq system is telling you. Good luck
I took a spark plug wire off and turned it over and it tried to run, and the spark that came from the wire was not normal. Normally you see and hear a spark when it is next to a ground, this one didnt happen consistently. I turned the motor over a few times.
I went through and checked all the connections and they seem tight, and no wire integrity issues either.
Safety Car
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
Steve,
Run through the steps in the delteq trouble shooting section and see where you are. I have an idea of whats wrong but without having an O Scope it realy is just a guess. The trouble guide with Delteq is a free and easy thing to try that doesn't invlove anything other then a little time. One last note is the Delteq is realy picky about grounds and a solid +12VDC so you may want to take a look at your power and grounds just to be safe
Run through the steps in the delteq trouble shooting section and see where you are. I have an idea of whats wrong but without having an O Scope it realy is just a guess. The trouble guide with Delteq is a free and easy thing to try that doesn't invlove anything other then a little time. One last note is the Delteq is realy picky about grounds and a solid +12VDC so you may want to take a look at your power and grounds just to be safe
Thread Starter
Le Mans Master
Joined: Feb 1999
Posts: 9,930
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
Originally Posted by FD2BLK
Steve,
Run through the steps in the delteq trouble shooting section and see where you are. I have an idea of whats wrong but without having an O Scope it realy is just a guess. The trouble guide with Delteq is a free and easy thing to try that doesn't invlove anything other then a little time. One last note is the Delteq is realy picky about grounds and a solid +12VDC so you may want to take a look at your power and grounds just to be safe
Run through the steps in the delteq trouble shooting section and see where you are. I have an idea of whats wrong but without having an O Scope it realy is just a guess. The trouble guide with Delteq is a free and easy thing to try that doesn't invlove anything other then a little time. One last note is the Delteq is realy picky about grounds and a solid +12VDC so you may want to take a look at your power and grounds just to be safe
Where are the grounds at? Is it over by the box on the cylinder head? I am sure I will find something. I hope it is simple.
Safety Car
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
Originally Posted by steve40th
DELTEQ tested sat usieng all of there diagnostics. I guess the Opti is bad?
THese are the ones that stick out to me for your problem
1. Did the Delteq LED flash while cranking then turn solid after 2 seconds?
This a good indication if it falshed for over 2 seconds and did not og soild it indicates bad OPTI
2.LED working but not all coils firing
Are some but not all the coils firing? Delteq states to perfom coil test probable bad coil driver
None of the coils fireing? Delteq recomends checking IGN fuse and if blown posible bad coil pack
Again if it is the Opti I think it is going to be an eratic Res signal from it but you realy need and O-scope to be shure. Before you waist $400 give Pete a call like you talked about but having gone through all the Delteq on line procedures wil save you time since I know you are in a differnt time zone.
Thread Starter
Le Mans Master
Joined: Feb 1999
Posts: 9,930
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
Originally Posted by FD2BLK
Did you do all the test?
THese are the ones that stick out to me for your problem
1. Did the Delteq LED flash while cranking then turn solid after 2 seconds?
This a good indication if it falshed for over 2 seconds and did not og soild it indicates bad OPTI
2.LED working but not all coils firing
Are some but not all the coils firing? Delteq states to perfom coil test probable bad coil driver
None of the coils fireing? Delteq recomends checking IGN fuse and if blown posible bad coil pack
Again if it is the Opti I think it is going to be an eratic Res signal from it but you realy need and O-scope to be shure. Before you waist $400 give Pete a call like you talked about but having gone through all the Delteq on line procedures wil save you time since I know you are in a differnt time zone.
THese are the ones that stick out to me for your problem
1. Did the Delteq LED flash while cranking then turn solid after 2 seconds?
This a good indication if it falshed for over 2 seconds and did not og soild it indicates bad OPTI
2.LED working but not all coils firing
Are some but not all the coils firing? Delteq states to perfom coil test probable bad coil driver
None of the coils fireing? Delteq recomends checking IGN fuse and if blown posible bad coil pack
Again if it is the Opti I think it is going to be an eratic Res signal from it but you realy need and O-scope to be shure. Before you waist $400 give Pete a call like you talked about but having gone through all the Delteq on line procedures wil save you time since I know you are in a differnt time zone.
#2 All coils were firing. But I will check again. They arced over.
Safety Car
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
Steve if all the coils where firing get a spark test tool so you can test the streangth of the spark. If all coils where firing but with a week spark then the problem is not going to be the Opti
Thread Starter
Le Mans Master
Joined: Feb 1999
Posts: 9,930
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
Originally Posted by FD2BLK
Steve if all the coils where firing get a spark test tool so you can test the streangth of the spark. If all coils where firing but with a week spark then the problem is not going to be the Opti
Recommendations?
Is it possible for all the coils to go bad? Or what controls them?
Safety Car
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
Originally Posted by steve40th
Okay, Let me see if I can rustle up one.
Recommendations?
Is it possible for all the coils to go bad? Or what controls them?
Recommendations?
Is it possible for all the coils to go bad? Or what controls them?
Thread Starter
Le Mans Master
Joined: Feb 1999
Posts: 9,930
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
Originally Posted by FD2BLK
Again Contact Pete tomorrow to make sure but if all the coils are providing a week but consistant spark I would look real close at the +12 VDC and grounds.