A little background, recently the Jeep's been shutting down at speed. A click off of the igintion key and I drive away. Well, yesterday it shut down on me twice while on the freeway. I decided to take the streets home and just before I was home I got a few backfires before she stalled again. Sounds timing related to me. With a few clicks of the key, I got the code and my MAP sensor numbers came up.
Here begins my fuzzy math;
The MAP sensor informs the computer about my air/fuel mixture correct? Now, if I have a vacumn leak, would that cause a faulty MAP signal as it is connected to the intake or do the sensors just die on their own?
If I disconnect the sensor, the Jeep should run better, the same, or worse. If the first two, replace the MAP? If worse, time to move on to the next sensor. TPS, CPS, IRS...
I did replace my fuel filter over the weekend thinking that my problems might be fuel related. I couldn't remember when the last time I had changed that. No change there. I did read some older posts and for some of you that had what appeared to be ignition related problems were fuel pumps going bad. The tank is almost empty so maybe time to drop that and have a peak.
The Jeep is a '95 with 130k on the engine.
thanks.
Here begins my fuzzy math;
The MAP sensor informs the computer about my air/fuel mixture correct? Now, if I have a vacumn leak, would that cause a faulty MAP signal as it is connected to the intake or do the sensors just die on their own?
If I disconnect the sensor, the Jeep should run better, the same, or worse. If the first two, replace the MAP? If worse, time to move on to the next sensor. TPS, CPS, IRS...
I did replace my fuel filter over the weekend thinking that my problems might be fuel related. I couldn't remember when the last time I had changed that. No change there. I did read some older posts and for some of you that had what appeared to be ignition related problems were fuel pumps going bad. The tank is almost empty so maybe time to drop that and have a peak.
The Jeep is a '95 with 130k on the engine.
thanks.
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