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weird cut out problem?!?!? any suggestions??

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Old 08-09-05, 05:03 PM
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Unhappy weird cut out problem?!?!? any suggestions??

i just redently bought this 91 vert and it ran fine all week since i picked it up last sunday,, but as of today its started doin this wierd cutout. ok heres the symptoms.. if i corner any faster then normal the motor like shuts down, and as of today if i try and accelerate too fast it shuts down. iut dont die just like cuts out then back in,, and if im goin down the interstate doin like 65-80 she cuts in and out pretty bad. ok ive replaced the plugs and wires and changed the oil, and fuel filter over the past week,, do u think the iridium plugs have to do with anything?? lemme know what u all think it could be b4 i go crazy and start spending money i dont have to...thanks guys!!
Old 08-09-05, 05:05 PM
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Clogged fuel pump pick up filter in the gas tank has the symtoms you describe.
Old 08-09-05, 05:10 PM
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it has had an auto to manual swap down i assume it was done professional cus everything is clean underneath,, how do i go about checking that fiulter do u know?? sorry i sound like a newbie this is my first vert and i know things r different,
Old 08-09-05, 05:27 PM
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Old 08-09-05, 06:17 PM
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Originally Posted by deetz
... how do i go about checking the (fuel filter) ...?? sorry i sound like a newbie this is my first vert and i know things r different,
Help us help you. Download the Factory Service Manual (workshop manual) and go through the troubleshooting sections for hesitation when the engine is running. That's in the 04A_Fuel_and_Emission_control_systems_non_turbo.pd f. This will get you up to speed. Start on page F1-13.

http://www.teamfc3s.org/main/factory...ual/1989_1991/

Last edited by vaughnc; 08-09-05 at 06:22 PM.
Old 01-16-06, 11:16 AM
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code blue r u on right now pm me if u r
Old 01-23-06, 09:48 AM
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Thumbs up

I had the same problem - .... go easy on the gas pedal.. fine... but at 3500 rpm it would "bog down" or "sputter" if I went any faster.... Turned out to be that the variable port valves were sticking and needed replacing.

As soon as a replaced them - it "Purred like a kitten" - smooth acceleration right up to red-line.
Old 01-23-06, 10:13 AM
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Is the electrical connector on your AFM tight?
Old 01-23-06, 11:42 AM
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if anything...you should first go to the auto parts store and get a fuel pump filter sock for a 86 to whenever rx-7 (all interchangeable) and replace that. not a fuel filter, but a filter sock...it goes directly onto the fuel pump.
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