xjtommy

Acted up the morning after a simple thermostat change. Started up, made it a block and died. Started again and yet a bout 5 blocks it stalled again. Fast forward to today.
Fuel pressure is good
Getting spark-even replaced cap and rotor
Replaced CSP sensor

Only getting these codes:
34
51

ANY IDEAS?

t.mcginley.jr

Code 34 has to do with the MAP sensor near your throttle body, it measures intake air pressure to decide how much fuel to use. I would check the little vacuum elbow that connects the MAP sensor to the nipple on the throttle body. Also if you have any other vacuum leaks (brittle/split/dryrotten vacuum lines) it will cause misfires.

The code 51 is either running too rich or too lean for more than 2 minutes or something. Sounds like the two codes are connected, but my guess is you are running too lean either from a vacuum leak or the MAP sensor is bad.

If you try and give it gas does it stutter and die?