I just noticed someone has installed a remote start on this blazer? I had no idea so I tried it out and it would crank the engine and it would start and die immediately? Could there be a issue within this remote start itself? I could care less about remote start so if I need to remove it that’s fine.

 

When did they hit .935? On idle? Do they get back to sth. around 0.5 or remain on .935?
You have had that time a rich mixture (Understanding Oxygen Sensors to Diagnose Fault Codes)

 

They would hit that area at 2k rpm

 

While driving (engine loaded)? Or just parked/neutral? Do they remain there while 2k rpms or not?

 

Well I said heck with it and I pulled out the old crankshaft sensor. I noticed on old one that it had rub marks so I made two shims outta the box it came in and put the new one in. I crossed my fingers hooked the battery back up and started it. It’s a smooth as can be now!!!!! I smash the gas and no more spark knock. No missing or hesitation at all now!!

 

And also my tach stopped jumping around. It’s nice and steady now.

 

Congratulations!
All these efforts You put turned out into a success. Great job!

 

Glad you figured it out.

George

 

Well done! So glad for you that it was only a sensor and not something harder to fix. I know I learned quite a bit following this thread. And thanks for following up on your fix. Too many don't come back to let people know if they fixed their problem and what the fix was.

 

Right. Ya I actually come to this site a lot even tho I don’t post much but u guys do a awesome job. I couldn’t even to begin to count the multiple things you’ll have helped me with. Also to note I don’t see any reason to relearn the crankshaft sensor this thing purrs like a kitten. Maybe that had something to do with buying the same cam sensor and same crank sensor? Maybe they are in line with each other? Idk but I’m glad it’s going good. Now to move to the next couple issues not related to the way it runs.