Red87Path

If i can find who sells the stuff here im going to try this too. my rig was running like crap till i figured out that the screws holding the injectors in wasnt tight. previous owner did a bang up job stripping those out for me. but putting that stuff in the filter sounds like a great way to get the best cleaning.

well, i hooked all the vacuum hoses up according to diagram, im getting spark, getting gas. but no start. could a vacuum hose hooked up to the wrong place prevent it from starting? i can get it to start but only by tapping the gas it will run real choppy. i was wondering if when i unplugged the o2 sensor if it could have ran rich and fouled the plugs up or not? (repeatedly banging head on radiator)

So, i unplugged the o2 sensor, the idle smoothed out. so i replaced the o2 sensor, now it starts and runs for about a minute then dies. and i finally found the vacuum diagram for this engine. going to check through all the hoses this morning and see if that changes anything.

Thats great. A nissan mystery. my hanes manual doesnt have the diagram for this engine with the throttle body. shows all the carburated models. but not mine, even checked on autozone.com, but no dice there either. chit.

A detailed picture of the vacuum daigram for the 87 z24i engine would be just awesome. the sticker is missing from my hood and previous owner put new vacuum hoses in, but im thinking he got them all wrong.

Already checked for vacuum leaks, none apparent. been looking for the exact diagram for my engine since the sticker is no longer under the hood. also wanted to check the ecu but no check enging light on dash, previous owner took dash apart for some strange reason. when i bought it the interior had all been removed was piled in the back. the guy was in the process of restoring it when his son lost interest. lucky for me though because this truck is in prettty good shape. other than the idle problem.

Mine does the same thing, up and down, but not all the time. sometimes its fine. aggravatin problem for sure.

Hi all, new member Trav here. I have an 87 pathfinder with the z24i engine in it, has 197k miles on it, drives great. My problem is it wont idle steady, revs up and down, wich is making it impossible to set the timing wich im sure is off by the way it hesitates and misfires. any advice would be helpful. Im just itching to take this thing out in the Arizona desert and play.