Idle problems, help if u can

[NismoDriverS13]

i went for a drive today and turn on my car and put it in drive......yes, its an auto for now till i swap the engine. anyways, the rpm needle started bobbing up and down and it felt like the engine was about to shut off.

i just replaced the spark plugs, so it should be them causing problems. im thinking either fuel injectors or........

any help would be highly appreciated.

[NismoDriverS13]

really? no one has any suggestions.......

[4x4le]

8 hours went by, it was night time. Your also in cali so 2-3 hours ahead of everyone else in the us so it was the middle of the night for most people so that was kinda early for you to think you would have got help already.

Also you didnt provide much information. I guess we can assume you have a ka, but we dont know if its a sohc or dohc. You say you replaced the plugs but did you replace the cap and button and wires?

Before jumping on a forum and just being like. help, my car dont run good whats wrong? do a few things on your own.


Clean the maf
make sure the tps is set correctly
make sure the timing is set correctly
make sure all your vac lines are connected correctly
check your fuel filter
clean your iacv

[NismoDriverS13]

yea, sorry..... it's a sohc.

i did all of the above......no luck, but im still trying to find something or anything that is causing the idle problem.

[yukon]

unplug the the injectors one by one. unplug maf tps etc. wiggle wires to see how that affects idle