Hello, i need help with this code, i can get the code when i do the key on and off, but with the obdii scanner dosn't show. How can i resolve this matter by troubleshotting or i need to replace the ECU. - voltage regulator inside ecu -. i can't found and i never hear about batt' temp' sensor.

thank

First verify the code with an actual scanner.

The 2GNT variant of the 420a ECU does not have a battry temp sensor. the battery temp is determined based on Battery resistance and impedance (no the two terms do not mean the same thing). If your ECu is throwing that code, one of two things are the cause. Battery is beginning to go bad (ie. bad cell) or the ECU is going bad.

Terry

for some odd reason I always have to have the car running to get the codes to pull with a scanner, most places don't know that some cars have to be running.

car shoulnd not have to be running. you have an issue somewhere or a cheap scanner.

ECU only needs to be powered up on our cars or any obd-2 car.

Thank you for the info, i'll change the battery, but i think the ecu is bad. I'll post the results soon.

Also, I upgrade the trhottle body for the jeep 60mm. I'm having 1200rpm at idle, .....Do you Guys think if i screw down the tip of the idle, will it bring the idle down, or 1200rpm is the normal idle after upgrade the trhottle body? I have a racing OBX intake.

Thnk you!

I almost forgot, i have a concern about my Oil pressure at idle my gauge show 80-90psi is almost a red zone. Any comments on this....

thank you.

Is that a mechanical gauge or an electrical sender gauge? There's no way you're making that kind of pressure at idle.

Hello, my gauge is mechanical....may be i can have a blowby piston rings? but is no smoking. But is good to have high pressure, i think.

thank you.

Originally posted by RASEC
But is good to have high pressure, i think.

Not that high. especially at idle. you should be closer to 20psi at idle IIRC.

80psi at WOT/4000+ rpms? yeah, that's fine