The performance problem is related to the codes.
The coolant sensor may be faulty.
Short to ground circuit between ECT terminal A and PCM connector terminal 4p
ECT signal and ground circuit circuit short each other.
Here is what you need to do.
- Inspect if ECT sensor terminal is bent.
Turn the key to off
Disconnect ECT sensor connector
Check for bent ECT sensor terminals A and B
- Determine is ECT sensor malfunction or hasness malfunction.
Mesure resistance between ECT sensor terminal A and B
the resistance should be within 2.27-2.74 kilohms(20*c 68*F
- inspect ECT siagnal circuit for short to ground.
Turn ignitiion key off
Disconnect pcm connector
check continuity between ECT sensor terminal A and body GND
check continuity between A and B harness side.
Report what you have find.
Friday, November 20th, 2009 AT 1:39 AM