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Fluctuating idle and slight miss - 6G Celicas Forums

Topic #65264 4 posts Started by 92-gt
Ok, so I havent gotten any help on the other forum that I regular, so I figured I would ask here as well.

I have a 1992 Celica GT with a rev 2 5sfe.

Friday I was driving up to my college and it seemed like it was running ok. When I was cruising though, and kept my foot at a steady speed, it seemed to jerk a little bit. If I gave it a bit more throttle it would be ok, or if I let off it would be ok.

When I came back outside to leave, it idled really low, and died, but I managed to limp it home ok.

I swapped TPS's with my 6th gen, and it idles a bit better, but it still fluctuates and misses.

All of my vacuum lines are ok.

I checked my IACV and it is not plugged.

When I am at idle sitting still, and I rev it up, if I slowly rev, it seems like it misses, but if I do it quickly, it is ok.

Any ideas of what it could be?

Could it be a bad o2 sensor?

I need to get my car running properly because I have to go to college, and I dont have a transmission in my 6th gen yet.

Please give me any ideas that you guys have, I would really appreciate it.

Thanks
-Ryan
Start with basics, when was the last time it had a "tune-up"?

Trust me, I do this every day
cap, rotor, plugs, and wires are all in order and relatively new?

2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
i agree w/ the two posts above. it is most likely a plug, wire, cap, or rotor issue. or a combination of any of those.

do the above mentioned items, clean whole throttle body, then look into your TPS, IACV, ignitor, coil, cam pos sensor, in that order.

QUOTE"And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH1994 GT:V6 swap, 5speed E53 W/ LSD, All Power, now RED1995 ST:SOLD @273k miles, Auto, all power, CarPC, White1994 ST:Totaled, 5spd, all power, RedRIP 07/09/09 @ 241,8101994 Lexus LS400:This is my new DD