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code p 0320 refers to crankshaft position (CKP) sensor /engine speed (RPM) sensor---circuit malfunction====causes --wiring--CKP/RPM sensor ---ECM check the wiring to the crank position sensor
replace the crankshaft position sensor
Have you checked your cranking fuel pump pressure? In your inquiry above you state "still no fuel or fire"....
When replacing the crankshaft sensor, did you make sure that the paper spacer on the sensor tip was in place? This is put there to give the proper spacing for the tip. Upon the first crank, the rotation pulls the paper off and allows the sensor to read.
hi katie
dealers are a pain in the but.t we all know unfortunetly there are many things that can go wrong in an engine these days all the electronics are a nightmare and people do have to pay allot of money to get them sorted out, by what you are saying and verry good description as well i might add, it actually sounds more like the TP sensor ( throtle possitionsensor ) it wouldnt be the 02 sensor as that would not make a difference to the rpm's, nore crank sensor, speed sensor ( there are 2 of these) it might be but i would be a bit hessitant and changing it first as normally that just sends signal to the speedo ( front one, posistion1 ) and the rear one records road speed, so i cant see it being that one, i personaly would go for a test on the TP sensor as this would definatley make the symptoms you are describing, the ECM could also be a problem if this has got "dirty software" in it this could cause loads of faults, you would then need to get the ECM ( engine control moduel ) re-mapped to get it back to normal, well i think that would be just about enough to be getting on with, so first i would check out ECM, if ok the the TP, then the speed sensor....hope this helps call back if you find the fault as well as if you dont ok..
Check to see if the fuel pump is running after it shuts down...could be a relay or the pump itself (overheating internally) Checked the fuel filter yet? Some crank sensors need to be shimmed. If it's too close to the flywheel even though you recently changed it, if it's too close to the wheel it can fail again. May not be the case but worth checking over. Also check the ceramic resistor on the left fender near the master cylinder if you have one. That too can cause problems.
It could do that with a bad switch if it was making poor contact before it disconnects, but that really sounds a lot like the fuel pump is going bad...they overheat and start to bind up, then stop...once cooled down they work just fine till it again gets hot enough to do the same thing all over again. I really hate doing this online because in real life, I'd be doing tons of testing instead of making "educated guesses"
Was your mechanic able to pull any trouble codes when the "flight recorder" was connected?
Does the engine run good at highway speeds and bad at idle to off idle?
Let me know.
Regards,
From what you have written, the problem does at first, appear to be a possible crank sensor problem, however, If your mechanic drove it with a "flight recorder" on board and lost communication with the computer, I'd start looking for an electrical malfunction that is depriving the computer of power. Possibly a poor harness connection, ignition switch etc. Could also be an internal computer problem as well, but I'd hold that for last, after all testing has been completed.
Sounds like contaminated fuel or bad pump/filter.
Now, just because I said that it's probably the crank sensor...Bottom line is do some testing. Or have someone test it. Begin with code scan...even if it shows nothing, that eliminates a bunch of stuff.
It sounds like you have some **** in the gas tank that is being drawn to the pickup blocking it.
Have seen this and because it seems so random, it can drive ya nuts.
You might carry a coffee can with you and pull the line from the fuel rail when this happens stick it in the can and just have someone turn the key on for a few seconds.
Beware though, it comes out with force.
Also possible is a failed fuel pressure regulator.
Those aren't expensive and . . . well, not very good either.
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