Loss of Power and Jerking!

[BuickGirlFromMars]

Hi! I just made sure to do the voltage tests you mentioned.
Engine off reading: 12.95V
Engine ON no load: 14.1V
Engine ON wih Load 13.90V

I just decided to install the old ECU again, the ecu that came with the car. to test if it runs better.The unit itself is allready a DELPHI reman unit. and it does work well, it shifts nice, sounds better. but the Check engine light is back on
On the first Run , the traction off light was on
On the second Run, The traction off light was no longer on but the check engine light indicated P0321 18x interrupt.
On the third Run Check engine was stil on, Codes: P0321 and P0361 EST Line not Toggling.
On the 4th run the check engine was on and the traction controll light was also on. Error codes same as before

The Memcal on my ECU says Delco BKKF 1386 ... Strange the GM BCC lookup says manual transmission.

At this point I can only assume that the ECU is bad because the other ECU I had installed didn't have any check engine light but the ignition would cut off intermittently, followed by a Change oil soon light. Faulty unit.

I am completely lost.

I will perform the Crank and Cam sensor tests from the 94 Manual and see if voltages are ok.

I am going to Throw more money into it, Put the correct alternator in, Get actual adapters for the battery terminals and two more ECUs,

IF that fails i will just cover the check engine light with a piece of tape.

Use the prom from your other computer in the computer that runs better.
Also a manual transmission computer is different than an auto

 

[BuickGirlFromMars]

P

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• pitcherofnectar
• Replies: 56
• Forum: Buick Park Avenue Forum

• 

 

[GregBPAU]

Use the prom from your other computer in the computer that runs better.
Also a manual transmission computer is different than an auto

Hi! Unfortunately both ECUs seem to be defective. I will re-check the diagnostics system manual, and perform the corresponding tests that do involve a GM Tech1 but I will try and use my Homemade ALDL Cable and TunerPro.

No shop in Spain has a Tech1. I will try and call a old Opel shop but they probably threw these tools away as OBD2 came along...

If the issue is a bad ECU I will just keep buying them until one works...

 

[BuickGirlFromMars]

Hi! Unfortunately both ECUs seem to be defective. I will re-check the diagnostics system manual, and perform the corresponding tests that do involve a GM Tech1 but I will try and use my Homemade ALDL Cable and TunerPro.

No shop in Spain has a Tech1. I will try and call a old Opel shop but they probably threw these tools away as OBD2 came along...

If the issue is a bad ECU I will just keep buying them until one works...

here is a list of part numbers for your PCM