1994 Buick Century DTC

Tiny
WILLEYC72
  • MEMBER
  • 1994 BUICK CENTURY
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 150,000 MILES
I keep getting DTC's PO342 and PO321 even after replacing Crankshaft senor and Camshaft senor what would be cause this to happen? Is the computer or the Ignition Module?
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Saturday, March 7th, 2009 AT 3:21 AM

3 Replies

Tiny
JDL
  • EXPERT
Hello, the codes don't tell you what to replace, the code says there is a suspected problem in the general area. Did you test the sensor circuits, ref voltage--ground--signal?

If your saying the vehicle cranks good but won't start, have you checked for spark at the plugs and injector pulse with the engine cranking?
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Saturday, March 7th, 2009 AT 9:10 AM
Tiny
OBXAUTOMEDIC
  • EXPERT
Hi Williy,

Well here are the code defs I have.

P0321 Ignition/Distributor Engine Speed Input Circuit Range/Performance.

P0342 Camshaft Position Sensor Circuit Low Input.

So I would also check the Input Speed Sensor Circuit.

Also did you clear the codes after replacing sensors?

.
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Saturday, March 7th, 2009 AT 9:17 AM
Tiny
WILLEYC72
  • MEMBER
The motor runs and is driveible but do I need to use mutimeter to test circuit and do I check at connector ref voitage if no voitage where is the problem at?
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Saturday, March 7th, 2009 AT 9:34 AM

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