96 q45 knock sensor

[belay]

i have a big problem with my q45. first when i got the car 2 weeks ago check engin light came on i checked it with the hand held comp... showed knock sensor bank 1 or 1 sensor,02 sensor bank 2 sensor 1, 02 sensor bank 1 sensor 2. i installed both 02 sensors and knock sensor bank 1 i still have the same problem showing knock sensor bank 1 or sensor 1 and its also running rough can some on help me please thank you.........

[Q451990]

Rough running sounds one or more bad injectors. Perhaps the OBDII is picking up the weirdness in the fuel mixture from that bank and throwing the O2 sensor code... not sure on the knock sensor codes.

Check out http://www.q45.org for ohm testing your knock sensors through the harness. It's not unusual to have a bad knock sensor subharness - so you can have good sensors, but a bad harness and still get the code.

I wouldn't think it would run rough with only bad knock sensors or O2 sensors... but OBDII may be different. Also check your MAF connection...

Welcome to NICO!

Heath

[fixer]

BELIEVE IT OR NOT KNOCK SENSOR CODE WILL NOT TURN ON THE CHECK ENGINE LIGHT. YOU HAVE ANOTHER ISSUE OTHER THAN KNOCK SENSORS. SCAN ECM AGAIN AND SCROLL THROUGH ALL DTC. IF YOU ONLY HAVE A KNOCK SENSOR CODE YOU SHOULD LOOK SOMEWHERE ELSE FOR DRIVEABILITY CONCERNS. SOMETIMES BAD INJECTORS WILL NOT SET A CODE BUT WILL CAUSE THE ENGINE TO RUN ROUGH.. OHM TEST ALL INJECTORS TO BE SURE

[maxnix]

Fixer, really appreciate your help, but please, lose the Caps Lock key as it looks like YOU ARE SHOUTING ALL THE TIME!

Thank you.

[fixer]

SORRY , IM USING THE COMPUTER AT WORK, it is set up to use caps lock all the time, infinitinet only has caps for fonts, and our rynolds program will not log in unless you use all caps. if i chang to lower case then i will have to remember to put it back to caps lock to continue working. i will try to remember but dont take it seriously if i am on caps lock all the time.

[maxnix]

IT"S JUST HARD ON THE EYES!

See what I mean?

Thanks for your well reasoned help.