harley2003

Hi, I'm new here, just bought a 2004 Honda civic si canadian, like ex us,and I have a service engine soon light, codes are P0141,P0962 and P2770, I should add this car is manual not auto,can someone help me with this problem,I'm John.

ezone

P0141, rear O2 sensor heater circuit
P0962 CPC solenoid valve A circuit open or short
P2770 TCC solenoid valve open circuit

Did someone install a PCM for an auto trans car?

You bought someone elses problem....can you get your money back?

harley2003

Hi, and no I can't get my money back. The car runs fine apart from that,I can get a new 02 sensor for the P0141, the rest I can live with, if not I can find a used computer at a junk yard, thank you, John.

ezone

I'd check the VIN and see if it's supposed to be a manual trans car, and if it is supposed to have a VTEC engine or not....
then check the part number on the PCM to see if it is for manual or automatic trans, and which engine it is for.....

and there may be more differences like wire harnesses are not the same between VTEC and non-VTEC engines....one might not even have the connector for the rear sensor if one did an engine or exhaust swap without doing research first.
So see if the rear sensor is even plugged in at all.

A used computer will need programmed by a dealer before the engine will run.

harley2003

I already check the vin and it's the right engine and transmission for this car.

ezone

Can you see the part number on the engine computer?

harley2003

I will check for it , where is it ?

ezone

Goggle image search here

PCM is stuffed in the dash behind the glovebox area. Gotta get the glovebox to open up all the way to the floor so you can see behind it. IDK if you can see the part number easily or not.






It will probably have the part number on a label along one of the edges like this, the top one with PLM in it is the Honda part number on this unit