rlalwardt

I have a 97 pont. G/P GTP with a bad misfire.A scan of codes revealed two fuel inj. are misfiring. After replacing all six injectors it still seems to be only running on half the cylinders.or with no change.Can a bad crankshaft position sensor cause a false fuel injector misfire code? If not where would I go from here?

BNaylor

Welcome to AF.

What were the 2 fuel injector DTCs? Any other DTCs? Have you tried a NOID light to check the fuel injector pulse from the PCM module?

A bad CKPS normally gives a no start condition or engine stalling/dying effect once moving. Sometimes a CKPS DTC will set but not always.

BTW - The camsahft position sensor controls fuel injector timing in conjunction with the CKPS.

__________________

'08 Pontiac Grand Prix GXP - LS4 5.3L V8
'02 Oldsmobile Alero GL2 - LA1 3400 V6
'01 Buick Regal GS - L67 Series II 3800 V6 Supercharged
'99 Buick Regal LS - L36 Series II 3800 V6
'03 Honda CR250R MX - 2 Stroke 250cc
'97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged
Timeslip 08/12/06

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rlalwardt

I don't recall the exact DTC's ,I don't have a NOID light .I'll have it scanned again.And repaired by someone more equiped and knowedgable like yourself.Thank You so much for your help though..But this seems to be out of my range of knowledge and resources