Idling/ stalling, no pedal response, weird ecu readings

[ecp]

Originally Posted by blue62

If you go back to my first post to you.....
a possibility of a common ground issue was mentioned..
These cars have different 14 ground points...
I see you got it fired up by running a jumper ground to the MAF.
I think the MAF grounds via the ECU but I am not positive.
The MAF is also two sensors in one.....
One measures air temp. the other measure air mass.
I do not know if they both ground via a common ground or not.
A wiring diagram would show you.
If the MAF does ground via the ECU you have and ECU ground issue.
If you have a ground point issue chances are your going to have further issues with the car.
You need to go through your ground points and the ECU ground point to avoid that possibility.

The diagram shows one ground wire from the MAF so I’d assume they both share that ground. It also shows it grounds via ecu. I’m not sure if the ecu has a ground that goes to to chassis in which all are connected or what. I do have continuity from ecu harness and maf ground but I will check the resistance and try tracing the wire to make sure it is fully in tact tomorrow. It may be a bandaid fix but if it can make it to the body shop I will be thrilled. Could still be totaled out by insurance….. got my work cutout for me tomorrow.

[blue62]

Originally Posted by ecp

The diagram shows one ground wire from the MAF so I’d assume they both share that ground. It also shows it grounds via ecu. I’m not sure if the ecu has a ground that goes to to chassis in which all are connected or what. I do have continuity from ecu harness and maf ground but I will check the resistance and try tracing the wire to make sure it is fully in tact tomorrow. It may be a bandaid fix but if it can make it to the body shop I will be thrilled. Could still be totaled out by insurance….. got my work cutout for me tomorrow.

I forgot all about your insurance.... totaled or not totaled out situation.
So your bandaid fix makes more sense at this point.
If there are circuits that get their ground via the ECU then the ECU has to be grounded to the chassis in some way.
ECU ground issues are not that uncommon.
If you go to youtube and look up scannerdanner he has some video's on diagnosing the issue.
He is a very good source of diagnostic information.

[ecp]

Originally Posted by blue62

I forgot all about your insurance.... totaled or not totaled out situation.
So your bandaid fix makes more sense at this point.
If there are circuits that get their ground via the ECU then the ECU has to be grounded to the chassis in some way.
ECU ground issues are not that uncommon.
If you go to youtube and look up scannerdanner he has some video's on diagnosing the issue.
He is a very good source of diagnostic information.

Thank you, I got a ground cable working, some weird stuff is going on. Looks like only part of the MAF is working properly. I get airflow and intake temp readings but on my durametric hot film MAF reads 0v and there’s a stored code inside.