OK, need some help
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
OK, need some help
So I have everything set up and the motor running.
Problem is it's not running the way I want it to be running.
I suspect I may some timing/ignition issues.
Here's what's happening:
1. I have what I think is a knocking. Never heard one before. I'm running premium gas.
2. The #8 cyl header pipe is getting red hot
3.idle goes up and down. funny part is it did that before I did the work. it kinda hunts for idle. IAC is new.
4. There's a hesitation when I hit the throttle. It will kinda bog before it goes..
I'm getting no codes.
Thanks
Problem is it's not running the way I want it to be running.
I suspect I may some timing/ignition issues.
Here's what's happening:
1. I have what I think is a knocking. Never heard one before. I'm running premium gas.
2. The #8 cyl header pipe is getting red hot
3.idle goes up and down. funny part is it did that before I did the work. it kinda hunts for idle. IAC is new.
4. There's a hesitation when I hit the throttle. It will kinda bog before it goes..
I'm getting no codes.
Thanks
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Safety Car
Joined: Nov 2004
Posts: 4,991
Likes: 5
From: The Pines South Jersey
go to the tech tips section and download the instructions for the IAC setup. keep it handy so you follow it properly.
set your min idle almost on your target with the iac, down only like 50-100 rpms. the iac is slow and will hunt if your not tight with the range.
you hve a modified set up now, the fsm should only be a reference.
Timing is going to be something your going to have to play with to get it right. DOing adjustments to the timing may also require reseting the IAC along the way.
SOme of the aftermarket throttle bodies make setting the IAC a PIA, that is why I say to set it up the min idle tight to the target.
set your min idle almost on your target with the iac, down only like 50-100 rpms. the iac is slow and will hunt if your not tight with the range.
you hve a modified set up now, the fsm should only be a reference.
Timing is going to be something your going to have to play with to get it right. DOing adjustments to the timing may also require reseting the IAC along the way.
SOme of the aftermarket throttle bodies make setting the IAC a PIA, that is why I say to set it up the min idle tight to the target.
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
go to the tech tips section and download the instructions for the IAC setup. keep it handy so you follow it properly.
set your min idle almost on your target with the iac, down only like 50-100 rpms. the iac is slow and will hunt if your not tight with the range.
you hve a modified set up now, the fsm should only be a reference.
Timing is going to be something your going to have to play with to get it right. DOing adjustments to the timing may also require reseting the IAC along the way.
SOme of the aftermarket throttle bodies make setting the IAC a PIA, that is why I say to set it up the min idle tight to the target.
set your min idle almost on your target with the iac, down only like 50-100 rpms. the iac is slow and will hunt if your not tight with the range.
you hve a modified set up now, the fsm should only be a reference.
Timing is going to be something your going to have to play with to get it right. DOing adjustments to the timing may also require reseting the IAC along the way.
SOme of the aftermarket throttle bodies make setting the IAC a PIA, that is why I say to set it up the min idle tight to the target.
Isn't the idle RPM set in the chip?
Safety Car
Joined: Nov 2004
Posts: 4,991
Likes: 5
From: The Pines South Jersey
target idle is, you need to set up the min idle -the farther off you are on the min the more the idle will hunt - the iac is a stepping motor, it is slow a snail **** it will over shot and then over compensate the other way.
Safety Car
Joined: Sep 2003
Posts: 3,599
Likes: 24
From: Orange County NY
St. Jude Donor '10-'11-'12-'13
So I have everything set up and the motor running.
Problem is it's not running the way I want it to be running.
I suspect I may some timing/ignition issues.
Here's what's happening:
1. I have what I think is a knocking. Never heard one before. I'm running premium gas.
2. The #8 cyl header pipe is getting red hot
3.idle goes up and down. funny part is it did that before I did the work. it kinda hunts for idle. IAC is new.
4. There's a hesitation when I hit the throttle. It will kinda bog before it goes..
I'm getting no codes.
Thanks
Problem is it's not running the way I want it to be running.
I suspect I may some timing/ignition issues.
Here's what's happening:
1. I have what I think is a knocking. Never heard one before. I'm running premium gas.
2. The #8 cyl header pipe is getting red hot
3.idle goes up and down. funny part is it did that before I did the work. it kinda hunts for idle. IAC is new.
4. There's a hesitation when I hit the throttle. It will kinda bog before it goes..
I'm getting no codes.
Thanks
3. Again - start with setting the min idle (which should be set about 75-100 rpms below the programmed idle in the chip. Ask Alvin where it is set.
4. Probably a combination of timing and acceleration enrichment, but again - min idle needs to be set, then timing, then see if there is still a bog.
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Drifting
Joined: Apr 2007
Posts: 1,339
Likes: 2
From: port charlotte fl
I think a timing/ignition issue would be global and not just on #8.I would be looking at either a valve gap issue or a bad injector.#8 should be the coolest running of the lot if you still have the EGR setup.Also there's a possibility that you have the plug wires hooked up wrong(forgive me)With a bad idle it's hard to tell and will give you a cherry red pipe and the rest of your symptoms.
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
1 & 2: Timing is the likely culprit. We got it close, but not dead on because we were not able to get it to idle with the ESC wire disconnected (sorry I had to leave!!). Min idle definitely needs to be set first, so start there.
3. Again - start with setting the min idle (which should be set about 75-100 rpms below the programmed idle in the chip. Ask Alvin where it is set.
4. Probably a combination of timing and acceleration enrichment, but again - min idle needs to be set, then timing, then see if there is still a bog.
3. Again - start with setting the min idle (which should be set about 75-100 rpms below the programmed idle in the chip. Ask Alvin where it is set.
4. Probably a combination of timing and acceleration enrichment, but again - min idle needs to be set, then timing, then see if there is still a bog.
I don't make those mistakes.
Can't fire it up an 9:15 at night. Neighbors would be pissed.
I'll try it tomorrow.
That right there will be a start. The fact that it was running at all is a good sign for tomorrow.
Drifting
Joined: Apr 2007
Posts: 1,339
Likes: 2
From: port charlotte fl
HEY!!! Went over everything and found we had 4 and 6 switched on the distributor. Clearly it was on your side of the motor..... I don't make those mistakes.
Can't fire it up an 9:15 at night. Neighbors would be pissed.
I'll try it tomorrow.
That right there will be a start. The fact that it was running at all is a good sign for tomorrow.
I don't make those mistakes. Can't fire it up an 9:15 at night. Neighbors would be pissed.
I'll try it tomorrow.
That right there will be a start. The fact that it was running at all is a good sign for tomorrow.
Team Owner
Joined: Sep 2002
Posts: 22,209
Likes: 12
From: OBAMA IS HITLER
jsup, have you talked to alvin about getting him those 2 datamster recordings we discussed? this will be your next order of business.
oh, and in 50 miles you'll want to change your oil. then do it again at 500, then again at 1,000. change your oil filter each time as well. then back to your normal change intervals.
oh, and in 50 miles you'll want to change your oil. then do it again at 500, then again at 1,000. change your oil filter each time as well. then back to your normal change intervals.
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
jsup, have you talked to alvin about getting him those 2 datamster recordings we discussed? this will be your next order of business.
oh, and in 50 miles you'll want to change your oil. then do it again at 500, then again at 1,000. change your oil filter each time as well.
oh, and in 50 miles you'll want to change your oil. then do it again at 500, then again at 1,000. change your oil filter each time as well.
I am going to do that with the oil. Cheap insurance.
Team Owner
Joined: Sep 2002
Posts: 22,209
Likes: 12
From: OBAMA IS HITLER
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Safety Car
Joined: Sep 2003
Posts: 3,599
Likes: 24
From: Orange County NY
St. Jude Donor '10-'11-'12-'13
HEY!!! Went over everything and found we had 4 and 6 switched on the distributor. Clearly it was on your side of the motor..... I don't make those mistakes. Can't fire it up an 9:15 at night. Neighbors would be pissed.
I'll try it tomorrow.
That right there will be a start. The fact that it was running at all is a good sign for tomorrow.
I don't make those mistakes. Can't fire it up an 9:15 at night. Neighbors would be pissed. I'll try it tomorrow.
That right there will be a start. The fact that it was running at all is a good sign for tomorrow.
Glad to hear all is well.
Get some exhaust on it and get ready to head on up in a few weeks. 
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan