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Author
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Topic: NEED HELP!!
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FOXWTIT
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Member # 7634
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posted
 
 
Alright heres the deal... I got a 93 coupe... my car seems to cut out or studder at about 2200 to about 3000rpm .. juss like a little drop out.. but i got gears and thats the rpm i ride in on the freeway... so its real annoying.. its only under load but it also does it when rpm or dropping down.. doesnt seam to matter where the pedal is at (rules out tps)... so here is the list of what i have done and pretty much ruled out..... i complete tune-up... new distributor... changed mass air.. and injectors... completly diffrent motor..ha.... all new gaskets... new throttle body.. egr spacer... i juss dont know what else to check its got to be a sensor or maybe the ecm... i just need a good direction... any help yall can give me would be awsome.. thanks.
Posts: 39 | From: SAN LORENZO | Registered: May 2007
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JohnB
Tech Moderator
Member # 969
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posted
Check the voltage at your TPS. You changed the TB, I doubt it's .95-.99...
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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FOXWTIT
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Member # 7634
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posted
I HAVNT CHECKED FOR CODES WITH THE NEW MOTOR BUT THE CHECK ENGINE LIGHT ISNT ON
Posts: 39 | From: SAN LORENZO | Registered: May 2007
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FOXWTIT
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Member # 7634
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posted
Maybe it didnt sputter coming down in rpm... i was probably thinkin a little to hard.. but i checked codes last night and i got an ect sensor out of range and my air thermactor apperantly isnt working... ill check the tps... but i mean its a brand new tb.. but that doesnt mean anything... ill check it and get back
Posts: 39 | From: SAN LORENZO | Registered: May 2007
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rickm347
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Member # 5323
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posted
quote:
Originally posted by FOXWTIT:
Maybe it didnt sputter coming down in rpm... i was probably thinkin a little to hard.. but i checked codes last night and i got an ect sensor out of range and my air thermactor apperantly isnt working... ill check the tps... but i mean its a brand new tb.. but that doesnt mean anything... ill check it and get back
do you know what the air thermactor is??
Posts: 936 | From: Chico | Registered: Feb 2005
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FOXWTIT
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Member # 7634
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posted
THE AIR THERMACTOR IS YOUR AIR INJECTION I BELIEVE... (SMOG PUMP).. BUT.. I TRIED CHANGING THE TPS AND THE PROBLEM IS STILL THERE.. NO CHANGE STILL SPUTTERS AT THE SAME SPOT... IM GONNA TRY UN PLUGGING THE MAP, AND PUTTIN MY IGNITION BOX TO STOCK AND SEE IF ANYTHING CHANGES...
Posts: 39 | From: SAN LORENZO | Registered: May 2007
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rickm347
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Member # 5323
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posted
air thermactor is the catalytic system. air thermactor = cats
Posts: 936 | From: Chico | Registered: Feb 2005
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marc
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Member # 4238
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posted
what mods are done to the car? does it happen when cold/ hot?
Posts: 290 | From: concord | Registered: Mar 2004
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FOXWTIT
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Member # 7634
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posted
HOW DOES MY COMPUTER TELL IF THE CATS ARE WORKING IF IT DOESNT HAVE ANY POST O2 SENSORS.... WELL I HAD THE PROBLEM WITH TWO DIFFRENT MOTORS... IT HAS TO BE IN THE WIRING SOMEWHERE.. SENSORS... OR MY IGNITION OR SOMETHING... I DONT THINK ITS MECHANICAL....
Posts: 39 | From: SAN LORENZO | Registered: May 2007
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