Have done all I know to do, any ideas? What do I do now?
What is your question?
At first thought it was bad gas/water, nope. Cleared tank (no fuel filter just in tank sock, 13-18 Altima sv QR25DE), replaced fuel pump assembly, injectors vvt(s)3,changed oil, MAF SENSOR, crank POS, cam POS (2) cleaned batt terminals and ect, spark plugs replaced, fixed plug &/or wires on MAF, crank sens & 1 cam sens, double checked plugs- no arcs detected. Pulling out hair! Cked IMRP solenoid-& POS sensor, good no bind on swirl flaps.. what now? HELP? Would crank and idle before, now crank no start, but really tries to. Has gotten worse not driving, just cranking once or twice a week to see if anything else was noticed.
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Hello, the thing that's crazy here is that there's no testing being performed. It appears that multiple parts are being replaced without cause. You can actually cause more problems by replacing good parts. At this point stop, have some testing performed to find out what is missing. When the engine cranks without starting, you are either not having fuel delivery, ignition spark, engine compression or have a timing issue. You could also have an air intake issue - too much or not enough air -- cold engine would be too much air.
The worst thing you can do is obtain a suggestion of a part you haven't yet replaced. What you ultimately need is testing to find out what's happening.
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