Okay guys this is kinda weird, it started with the starter a couple of days ago. It sounded like it was grinding a bit but it still started. Now I have to crank it a few times when it's hot. It smells like fuel when I'm idling. And cruising. It hesitates throughout all the rev range. Less hesitation when I'm gassing it a little bit. It doesn't do it while cold. Only while hot. Oil pressure is stable, voltage is stable. Revs are not. No check engine light. Backfires a lot. It scares me a little bit cause I just replaced the oil gallery gaskets. The timing was correct when I put the timing cover back on. Please help guys what do I do?

 

Did you pull the codes?

 

There are no codes. Light never came on

 

But you did try pulling them, yes?

Not all fault codes throw a CEL.

Sounds like a misfire.

 

Okay let me go check, I'll be right back.

 

P0300
multiple misfires failure

 

p0300 multiple misfires failure

 

Well, without being able to put hands on, would suggest you just retrace all of your work steps the oil gallery gasket replacement. Would not surprise to find that it's simply a misplaced or cross wire mistake (like cylinder 4 & 6 coil connectors or somesuch.) It could also be a cam timing issue if/when you were messing with the cam tensioners, VVT, etc. given it's a multiple misfires code. (But that's misleading as I pulled a P0305 at one time then a week later it came back as a generic "P0300") Just carefully go back over everything, starting with the wiring harness to the coils. Good luck!

 

I was checking my grounds, all the grounds were loose lmao, i tightened the bolts.I'm going to go test drive it now to see if its fixed. I will report back.

 

That's what it was man, I appreciate the help. I believe I wouldn't have checked the codes if it wasn't for you. Im glad i figured it out, i remember tightening those things down, its crazy how they came loose, i mustve only snugged them. But they are on there now! I hope this can help someone else like it helped me. This forum has helped me in a lot of ways. Thank you to all the members that help everyone out. You make the Z world go round❤

 

Glad it worked out for ya. Usually something simple when ya just did work on it. Trust me, I know about that.... laff. Might help to go back over everything and make sure everything's tight and in their right places just to make sure.