motor help

[primecut_primera]

hey guys im new with this sr20 stuff i barely bought this nice sexy 91 p10 from my homie dat moved to bay area. well yea i use to **** with hondas and i have a jdm sr20de redtop in my **** rite now and it was running fine when i got it sum idle probs but no i gave it a engine wash and i change the cap and rotor but i left the spark plugs and wires da same kinda of a budget cali is expensive well dat was no problem now it is running weird it sounds like a sti its sound tight i wish it would stay like that lol but it seems to be running on 3 cylinder because it was laggy i was just wondering what do oyu guys think is the problem wat should i look at?

[VMPhil]

sounds like a misfire, you throwing a code? pull it and see what it says.

[primecut_primera]

so you want me to run a diagnostic on my **** **** man it was just running fine when i got it

[RED_DET]

An injector may have stopped working. Its known to happen. With the engine idling, undue each injector harness one at a time and plug it back in before you pull the next one. If th cylinder that is misfiring doesn't respond when you undue the harness, that is probably the faulty injector.

[primecut_primera]

sounds good man thanks imma go try it out rite now thank you alooots

[mirrortints]

Also, you may want to check out the plugs and wires. Hit up GregV @ gspec.com for all nissan/infiniti needs.