blazer got wet now isnt shifting right i need help please!!!

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Aug 2, 2010 | 07:39 PM

#11

swartlkk

Administrator

Joined: May 2005

Posts: 41,334

From: Waterloo, NY

What were the specific codes? Check the OBD2 Trouble Code Listing link in my signature for diagnostic trouble shooting charts for a few of the more common codes (and some uncommon ones).

Aug 3, 2010 | 01:18 AM

#12

bmx4life218

Thread Starter

Beginning Member

Joined: Jul 2010

Posts: 16

i also put new plugs and wires in

p0306 and p0121

Last edited by swartlkk; Aug 3, 2010 at 01:28 AM. Reason: *Consecutive Posts* - Please use the edit feature to add more information to your post if another member has yet to reply.

Aug 3, 2010 | 01:32 AM

#13

swartlkk

Administrator

Joined: May 2005

Posts: 41,334

From: Waterloo, NY

P0121 - Throttle Position Sensor A Circuit Range/Performance (check out P0122 or P0123 for troubleshooting ideas)
P030x - Random/Multiple Cylinder Misfire Detected

The TPS sensor should have a ground, +5V reference, and then the sensor return. The sensor return wire should show ~0.5V at closed throttle and ~4.5V at wide open throttle with the key on, engine off.