I have checked fuses(seem fine, but could they be faulty while not noticeable?)I have also made sure of gas in tank. I have replaced relay,gas filter, gas pump,distributor and crankshaft position sensor. It still attempts to start but it turns off immediately. What else could it be? I have also bought but, not replaced spark plugs after having been diagnosed with spark 4 and 6 bad couple months ago, could that cause a no start condition? Thank you.
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As far as your no start condition goes, a little more info is required, Now just 2 of 6 spark plugs being faulty...no that will not cause your no start. You say it "turns immediately" Does the engine start then stall out or does it quit cranking over ?, Keep in mind what is required for an engine to start, Fuel, air (the ability of the engine to "breathe") and spark (spark does include proper timing). Start with the basics, check for proper fuel pressure, check for spark on 2 or more cylinders (check at end of spark plug wires please), check engine cranking vacuum. Be sure the check engine light does come on when the key is cycled on. If this gets a little to complex for you, the best investment you will make is getting it properly diagnosed at a trusted repair facility, I mean seriously, your time, frustration and monies spent of parts that have not fixed the problem....a diagnosis by a professional is a drop in the bucket.
Best of luck.
Tim
I have replaced relay,gas filter,gas pump,whole distributor (checked rotor under dist.top to see if it turned when cranked to verify timing belt function, it turned in a slow to moderate speed)I have replaced and cleaned crankshaft position sensor(was dirty with leaked oil,not sure from where) I have attempted to start it with starting fluid(it cranks over but turns off immediately) I tested with a test light on the fuel injection cables it did not lit
.Today we took it to get a computerized diagnostic and the only code it presented was po120. I was told to replace the TPS but, it doEs nOt seem to me that would cause a no start condition( when i asked i was not given an answer at shop i did comp.diagnostic today i was recommended a shop..i really want to learn to work on it myself for auto-sufficiency purposes ) .
The pathfinder when it did start was weak and piston noisy when accelerated. check engine light was on sometimes. had low fuel economy less than it should. I bought this pathfinder a year ago it has now 253 k . I was told due to crash in front radiator was replaced but other than that the pathfinder had more force when we bought it. I appreciate any insight and help, Thanks! O and fuses seem fine I was under the impression damage should always be visible I will use test light today! Thanks!
I have replaced relay,gas filter,gas pump,whole distributor (checked rotor under dist.top to see if it turned when cranked to verify timing belt function, it turned in a slow to moderate speed)I have replaced and cleaned crankshaft position sensor(was dirty with leaked oil,not sure from where) I have attempted to start it with starting fluid(it cranks over but turns off immediately) I tested with a test light on the fuel injection cables it did not lit .Today we took it to get a computerized diagnostic and the only code it presented was po120. I was told to replace the TPS but, it doEs nOt seem to me that would cause a no start condition( when i asked i was not given an answer at shop i did comp.diagnostic today i was recommended a shop..i really want to learn to work on it myself for auto-sufficiency purposes ) . The pathfinder when it did start was weak and piston noisy when accelerated. check engine light was on sometimes. had low fuel economy less than it should. I bought this pathfinder a year ago it has now 253 k . I was told due to crash in front radiator was replaced but other than that the pathfinder had more force when we bought it. I appreciate any insight and help, Thanks! O and fuses seem fine I was under the impression damage should always be visible I will use test light today! Thanks!