Stranger CELs ( Need Help. )

7650

New Member
I switched to B20b 3 months ago, after the swap it started creating Wiring Problem, I re-arranged the Wiring and did it all again. Still The ECU is giving STRANGE CEL's which include CEL # 2, 6, 7, 17, 22, 23. not on same time but after i rev it high it gives one of these.
 

acclude

cheap bastard
I would have posted this in the All Motor section, not interior but whatever....

Lets start with the codes.

2 - Oxygen Sensor "B" defective circuit or unplugged / defective sensor
6 - ECT Sensor (Engine Coolant Temperature) defective circuit or unplugged / defective sensor
7 - TP Sensor (Throttle Position) defective circuit or unplugged / defective sensor
17- VSS (Vehicle Speed Sensor) defective circuit or unplugged / defective sensor
22 - VTEC Oil Pressure Switch defective circuit or unplugged / defective oil pressure switch
23 - KS (Knock Sensor) defective circuit or unplugged / defective sensor

The TPS, ECT, and O2 sensor all share one wire in common - the green/blue wire which is a shared voltage wire. Check for continuity between the green/blue wire at the ECU and each of those sensors. Also check to make sure that that wire at the ECU does not have continuity with ground.

The VSS is on it's own circuit with a power wire a ground wire and the VSS signal wire (orange I believe).

The VTEC press. switch is also on it's own circuit with a ground and a signal wire.

The KS is only a single wire (red/blue I think) but you probably don't have a knock sensor since you have a B20 block. I'm just guessing that but correct me if I'm wrong.



A few questions....
You said you had issues re-wiring it? You should have been able to just swap your old engine harness over and run a few new wires for VTEC. What exactly did you have to re-wire?

Do you have a knock sensor?

What ECU are you running?

You also said that the codes don't show up at the same time....so what codes show up together and what shows up separately?
 
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