Hesitation from 1,400 to about 2K
 

Hesitates after warm from those rpms.....i'm thinking TPS. what do u guys think..

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'86 GT.
Gears & Flows

'87 GT.
Stock

at WOT or normal driving..if normal driving id say 2 much spark or 2 much fuel..if at WOT i have no idea if it stops at 2000..what mods to the car

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1987 black notch(ex 4 banger)
DSS 306 w/ main support...Elderbrock 6028 heads..gt-40 intake..24# injectors...70 mm tb..77 pro-m...accel 300+..mac full legnth..tremec w/ pro5oh...full MAC exhaust,off road h-pipe,long tubes, catback...ron davis radiator..subframes, control arms...CFDF II..o yea holley FPR sucks..dont buy one..
AIM=onesillynotch

Its happening on the 87 which is bone stock. I have smelled fuel faintly after the car is warmed up when i stop...but that is rare. i just did a tune up and it is still doing the same thing.

Just normal driving. say its ion 5th on the interstate at around 1500 rpms and u give it some gas to pass someone...does it then.

Has a rough idle every now and again too. Not all the time though....

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'86 GT.
Gears & Flows

'87 GT.
Stock

[This message has been edited by EZRIDN (edited 04-20-2001).]

[This message has been edited by EZRIDN (edited 04-20-2001).]

Try cleaning your idle air bypass valve if you haven't already.

EGR sticking open could probably cause those things, too.

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351W 89 Mustang GT Convertible

If it's doing it under WOT acceleration, along with a bucking and surge, there is an excellent chance you're running lean.

Many times that problem is caused by a bad injector. Could be dirty or just shot.

The TPS wouldn't care what rpm you are at, only throttle position.