2.8 exaust manafolds get cherry red and it dont run for crap wont idle or rev any ideas guys

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Try checking the iac, tps, vacum leaks, in hoses & exhaust manifolds before the 02, fuel pressure, cts, mat, map, 02 sensor, is the car coding anything? The manifolds do get red, they may get there a little quicker if you have a vac leak or high idle--but they do glow..

ive noticed that the fuel pressure is only there when your turning it over but if your not turning it over then there is no pressure but i cant get no rpm out of it at all and she pops iac ive tryed replaceing it and its the same

Do you hear the fuel pump for 2-4 seconds with key *only* on ? ?

[This message has been edited by 3800superfast (edited 05-19-2006).]

Did you or anyone else try to set the ignition timing? If so, they may have messed it up.
You need to unscrew the cover plate around the cigarette lighter and ground out the diagnostic pin of the connector inside. Then you can check/set the ignition timing. If you don't the timing will be 30 degrees off or so, enough to make the engine idle poorly and not run above that.

quote Originally posted by 3800superfast: Do you hear the fuel pump for 2-4 seconds with key *only* on ?

yes it comes on

Do you still have the factory installed stop idle screw cap on the top of the T.B., if not that may be causing idle problems too .

If your FP checks out I'd almost garantee you it's your catalatic converter. It's clogged. I've had this happen twice. If you can't get it replaced right away, at least cut out the cat and put a test pipe in. You can verify by taking it to midas or something and have them do a backpressure test through your o2 sensor bung.

Let us know what works out.

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Dana Mitchell
Member of the Gateway Fiero Club
95 Impala SS
95 Roadmaster Estate Wagon
87 GT Maroon w/ Silver Auto
86 SE Red w/ Black 3.2L w/ T-440

[This message has been edited by Fiero_Freak (edited 05-19-2006).]

quote Originally posted by Fiero_Freak: If your FP checks out I'd almost garantee you it's your catalatic converter. It's clogged. I've had this happen twice. If you can't get it replaced right away, at least cut out the cat and put a test pipe in. You can verify by taking it to midas or something and have them do a backpressure test through your o2 sensor bung. Let us know what works out.

lol no cat took out 2 years ago

If it is leaning out, then you really should be looking at some scans of the computer to see what the sensors are telling the ecu. Look into getting a laptop or somthing that can scan the engine data.

quote Originally posted by fiero1969: i was getting ready to take my baby to the heeep

There is still time... I got a nice spot for it in my yard...

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Everything Fades With Time.
86' Fiero Base Model = Soon V8 Drag Car
87' Fiero SE 2.8 w/ .477 cam+ goodies
88' Fiero SE Parts Car and suspension donor :)

quote Originally posted by darkhorizon: If it is leaning out, then you really should be looking at some scans of the computer to see what the sensors are telling the ecu. Look into getting a laptop or somthing that can scan the engine data.

This is a real good idea, you can get a cable here or from strat110 (memeber) or build one.

www.aldlcable.com

http://winaldl.joby.se/ for your tuning free software

it jumped time so now i got a mess to deal with and i dont have time so now it sits

Lift out the distributor, give it a turn to line up with # 1 cylinder @ TDC and have the rotor under the # 1 pole on your dis cap--worth a try...