SES keeps getting set...
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Joined: Aug 1999
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From: St. Charles, MO
SES keeps getting set...TPS Problems Bigtime...
I just replaced my TPS with a new one, checked the plug and sure enough it is getting 5volts.
My AutoXray now reads that the max is 1.7 volts
Now if I go to WOT for more than a few seconds my SES light comes on, it does go off after restart...
I am seeing a code 42 and 43 as well. I know one is from me setting the timing anyone know why I would get the other?
All this is following a new LT4HOTCAM install. :nopity
[Modified by snyper, 7:03 PM 8/7/2002]
My AutoXray now reads that the max is 1.7 volts
Now if I go to WOT for more than a few seconds my SES light comes on, it does go off after restart...
I am seeing a code 42 and 43 as well. I know one is from me setting the timing anyone know why I would get the other?
All this is following a new LT4HOTCAM install. :nopity
[Modified by snyper, 7:03 PM 8/7/2002]
Burning Brakes
Joined: Feb 2000
Posts: 824
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From: Camden SC
Re: SES keeps getting set...TPS Problems Bigtime... (Steel Blue 91)
First, if you have a factory service manual, go to Emissions and Drivability, Code 42 and 43. If certain circuits associated with the HEI module are not working, there will be no EST. You could be stuck in the module mode and not changing to EST mode. For the code 43, the ECM perform's two tests to insure EST is working. One of these tests is under high engine load based on air flow (WOT?) and it seems as though your car is not passing this test and setting the Code 43. At least that's how I read the book.
Check to see if the timing connector used to set base timing is connected. If it is connected, you will have to start with the trouble shooting procedures for the code 42 and find out why you may not be getting into EST mode.
The TPS problems may be related. Surprised your not getting a TPS code but then again, it could be witchcraft.
Do you have a stock HEI distributor/ignition module?
From what I read, these two codes 42/43 are definitely related. Let us know what you find.
dlmeyers 90 coupe zf6 3 speed shocks
Check to see if the timing connector used to set base timing is connected. If it is connected, you will have to start with the trouble shooting procedures for the code 42 and find out why you may not be getting into EST mode.
The TPS problems may be related. Surprised your not getting a TPS code but then again, it could be witchcraft.
Do you have a stock HEI distributor/ignition module?
From what I read, these two codes 42/43 are definitely related. Let us know what you find.
dlmeyers 90 coupe zf6 3 speed shocks
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Joined: Aug 1999
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From: St. Charles, MO
Re: SES keeps getting set...TPS Problems Bigtime... (dlmeyers)
Last night I took apart all wires to/from Distributor, and TPS. I Off and cleaned the Distributor cap and made sure everything was connected good and unplugged the battery.
I then hopped three times counter clock wise on my right foot and once clockwise on the left and when the car restarted all was fixed...
Don't actually know what the problem was, looks like just a bad connection somewhere.
Still have the mystery of why my interior beeper beeps(like when you leave the healights on with the keys out) even while the engine is running... Anyone know that ritual?
I then hopped three times counter clock wise on my right foot and once clockwise on the left and when the car restarted all was fixed...
Don't actually know what the problem was, looks like just a bad connection somewhere.
Still have the mystery of why my interior beeper beeps(like when you leave the healights on with the keys out) even while the engine is running... Anyone know that ritual?
Team Owner
Joined: Dec 2000
Posts: 90,675
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From: SE NY
Cruise-In II Veteran
Re: SES keeps getting set...TPS Problems Bigtime... (snyper)
You need to setup your new TPS, I have a method on my site. Also assure that the tang is engaged properly into the throttle linkage; you can simply move the throttle and see if the TPS voltage changes smoothly throught the range of motion.
As mentioned, check the EST connector and clean all dist contacts.
As for that chime, any messages in the DIC and is the parking brake fully disengaged?
[Modified by 65Z01, 10:05 AM 8/8/2002]
As mentioned, check the EST connector and clean all dist contacts.
As for that chime, any messages in the DIC and is the parking brake fully disengaged?
[Modified by 65Z01, 10:05 AM 8/8/2002]
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Joined: Aug 1999
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From: St. Charles, MO
Re: SES keeps getting set...TPS Problems Bigtime... (65Z01)
Well problem is back. My MAX TPS voltage the ECM see's is 1.7v. I checked it at the TPS and it is working correctly.
Leaves two things I can see..
1- A bad wire. I don't know why it would just go to 1.7 though...
2- ECM is crappin out.
Anyone else have any ideas? I'm gonn post another topic but I just failed my emmisions test too for high hydrocarbons... :confused:
Leaves two things I can see..
1- A bad wire. I don't know why it would just go to 1.7 though...
2- ECM is crappin out.
Anyone else have any ideas? I'm gonn post another topic but I just failed my emmisions test too for high hydrocarbons... :confused:
