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#1 |
Registered Member
Join Date: Mar 2002
Location: Vestal, NY
Posts: 307
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![]() I was wondering what I can check to solve this problem? The car will sputter, or surge when at a constant rpm, under 2500k rpms, which includes idle. It is actually kind of random when it does it. I can't tell under any other conditions that the car will surge like this. It hasn't done this until the temps up here started to dip into the 40's and 50's. I am not really sure what to look at to determine what is causing this? I do get a check engine light sometimes, on and off, which Im pretty sure is due to one of my o2's. The car also surges if there is no check engine light on....
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1989 Mustang 5.0 Conversion, Full Saleen ground effects and spoiler, '94 saleen decal set, '93 Saleen Seats, Black interior from a '93, Steeda quadrant, smog pump delete, a/c delete, Steeda Tri-Ax shifter, '97 rear differential, aluminum driveshaft, 5 lug conversion, '97 rear disc brakes, southside upper and lower control arms, '99 GT Anniversary wheels, flowtech longtubes, flowtech offroad H-pipe, saleen lowering springs, kyb shocks, caster/camber plates |
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#2 |
Junior Member
Join Date: Mar 1999
Location: Ventura, California
Posts: 8,981
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![]() What are the codes?
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Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local
RED & WHITE! |
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#3 |
Rearview Mirror Haze
Join Date: May 1999
Location: Huntsville, Alabama...a.k.a. "HuntsVegas"
Posts: 387
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![]() TPS (Was my problem- only 20 bucks), air bypass, loose or corroded wire (check the main wire to the firewall), corroded intake/TB...
I am a huge believer in checking or changing sensors... try the TPS first since it's the least expensive! Also I've had a wire trying to come loose causing surge. Oh yeah... I just read that the "check engine" light blinks on and off... the only thing that will cause that is emissions, like u said an o2 sensor, egr (surging?), gas cap, maf sensor, etc... it really should say check emissions, but i'm no engineer.
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93 lx Notch 01 GT ![]() ...the epitome of Murphy's Law |
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#4 |
Gimme a Drink!
Join Date: Dec 2002
Location: NYC
Posts: 694
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![]() latemodel resto sells aftermarket TPS for $40-$50, where did you pick it up for $20?
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1990 GT,stock T-5,K&N w/o air silencer,March underdrives,FMS wires,timing@14*,PA Perf 130amp alt,Steeda Tri-Ax Shifter,Steeda adj quadrant/clutch cable/firewall adj,Centerforce II clutch,o/r x-pipe,Magnaflow SS catback,g-load brace, subframes,Bilstein struts/shocks,Autometer gauges, 136k and running strong! |
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