Nissan Repair Questions? Ask a Mechanic for Answers ASAP
HI this is MATT. So is it cranking, but won't start? Have you checked for spark, fuel pressure, and /or injector pulse? Any codes? let me know what you have checked, and/or have the ability to check. thanks, MATT
I have checked mainly just the fuses. I don't have a handheld diagnostics nor any way of checking fuel pressure. The girlfriend has ran in out of gas a several times so i automaticly changed the fuel pump and plugs while i was at it.
Is it cranking? MATT
yes it is
Okay, next step ,is to check for spark. There are four coils bolted to the top of the motor. Unbolt one and pull it out, then put a screw driver into the coil boot, and lay it next to something grounded ( a bolt on the engine). Then when someone cranks the motor, you should see a spark jump form screw driver to ground. Using a spark tester is easier, but I assume you do not have one, correct? MATT let me know if this makes sense.
yes it does
Let me know, what you find. MATT
I did not see spark, I checked all four, no spark. Had a friend come over with some experience with coil packs to make sure I was test right as well, due to not getting spark off all four coils.
When you turn the key on, does the check engine light come on?
Let me know, about the Engine light. Do you have a test light or volt/ohm meter?
Next step should be to check injector pulse. but you'll need a light or meter to check. You can put a long screw driver on the injector body and the other end to your ear, and listen for the click of the injector firing. This is hard to do while cranking a engine, because of the cranking noise. This is usually done @ idle, to find a bad/ or not firing injector. let me know what you have and I'll try to help you test it. MATT
I had some people help me with checking injector they are fine, the injector fire it is getting gas. Gas just insn't being send to injectors. i believe it is a programing issue and have to take this to nissan, the other forums i have looked at makes me believe it is a crank sensor. there is also a recall for ccm reprogramming.