My RPM is going nuts. When i have have the car in parked the RPM goes up and down like crazy...and when I stop when in Drive. I changed the TPS,IAC,and M.A.P. sensor...and still does it!!!What can yall recommand to make my idle run better?thanks.

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It is not how you stand by your car,but how you race it.

 

Depends on your engine type. For TPI I would check our your MAF sensor first. For TBI or carb start with fuel pressure.

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92 Camaro RS, LO3, 5-spd, T-tops

Performance:
K&N Open Air Filter, Edelbrock performer TBI intake, Fastchip Prom, Timing +4 degrees, Centerforce clutch, Xact 8mm wires, SLP 1 3/4" Headers (coated), Flowmaster Catback Exhaust, Z28 Grille w/aftmkt fog lamps, MacEwen white-face guages
Electronics:
Alpine 8030 Alarm System, Valentine One Radar Detector (How did I ever drive without one?), Pioneer DEH 7450 Head Unit w/6-pack CD changer, Pioneer DEQ 7600 Sound Processor, 2 Kenwood KAC-846 Amps powering 2 12" Pro Red subs, 2 Pioneer 6x9 and 2 MTX 4x6 speakers.
NEXT UP: TBI mods, 3.42 gears w/Torsen posi

 

I would also check fr some vacuum leaks. When i had one my car would not idle good at all. If you check for leaks and think you might have one spotted, get a can of carb cleaner and spray it in that area. If the car revs slighly when u spray then you have found a vacuum leak
good luck

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*1989 RS
*Red, Daytona Turbo fiberglass hood, chrome 16x8 IROC wheels
*355 CID
*TPI ported plenum, SLP siamesed runners, Edelbrock high flow intake
*Edelbrock TES Headers (getting SLP 1 3/4 this summer)
*Richmond 3.73, Auburn Posi
*Modded 700-R4, 2800 stall converter
*NO recent time slips.

 

Is it the guage that is bouncing a lot or is I the engine revig a lot.

If the tach needle is bouncing (you also notice slight surging), then you have some plugs and wires fried.

I don't know it the needle is your problem or not, but I was on mine and 75 dollars and two cut up forarms later it was a new car.

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late model 91 rs
fully loaded t-tops, red leather
paint- gm red and yellow blend (light red)
custom painted 16" Camaro rims
305 tbi 14"x3" O.E, computer chip, accel super stock plug wires
Edelbrock 3" cat-back
MTX sub and amp, Bose all around
vic_v8@yahoo.com
street kills: a lot of "family" cars, pickups, New v-6 stang, totally killed '86 SC Camaro, 91 z 28 with 305

 

Thanks for the tips guys.My car is a '89 305 TBI firebird.I'll that carb cleaner and try for a vacuum leak.Thanks.I keep ya'll posted.

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It is not how you stand by your car,but how you race it.