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05-05-2003, 11:06 AM
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I'd hit it
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Join Date: Dec 2002
Location: Greer, SC
Posts: 388
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Hesitation problem
I have a problem. Under WOT at around 4000rpm's my car falls on its face. I have changed the TFI module on the distributor, and the mass air meter and no help. I think it might be something inside of the distributor or the TPS sensor.  Any other ideas?
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05-05-2003, 01:08 PM
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I Brake 4 Steak !!!
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Join Date: Dec 2001
Location: Inman, SC
Posts: 3,519
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My '96 used to misfire sometimes and I couldnt figure out why. It turned out to be the underdrive pulley on the crank throwing off the timing.
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05-05-2003, 04:56 PM
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Registered User
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Join Date: Oct 2002
Location: folly beach, sc
Posts: 8,114
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RX7s are BAD about doing that with a bad or misadjusted TPS.
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05-24-2003, 02:44 PM
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I Brake 4 Steak !!!
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Join Date: Dec 2001
Location: Inman, SC
Posts: 3,519
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timing?
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05-25-2003, 05:33 PM
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I'd hit it
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Join Date: Dec 2002
Location: Greer, SC
Posts: 388
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The timing is set at 15 deg. When the car is first started, it will idle perfect,then after the car warms up it will start misfiring and surging very bad. I also replaced the distributor yesterday.
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05-26-2003, 08:01 PM
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MMM nothin like some good
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Join Date: Nov 2002
Location: Campobello,SC
Posts: 490
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also after everything he has done and replaced to try and fix the car, it runs perfect and leads you to believe it fixed then ****s up again
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06-06-2003, 10:35 AM
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I'd hit it
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Join Date: Dec 2002
Location: Greer, SC
Posts: 388
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I have narrowed it down to o2 sensors. Should have some by the middle of next week.
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06-06-2003, 12:33 PM
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Registered User
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Join Date: Oct 2002
Location: folly beach, sc
Posts: 8,114
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its probably not the o2 sensor. Thats only used for closed loop operation. Everything but cruising at a consistent throttle position is open loop. Surging is usually the ECU being confused about engine speed and position, throttle position or its just running really lean. Lean condition would be caused by a vacuum leak on a N/A car. If you dont have an AF gauge I suggest you buy one (preferably from me  I have one in stock). Good luck.
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06-06-2003, 12:48 PM
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I'd hit it
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Join Date: Dec 2002
Location: Greer, SC
Posts: 388
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I had a vacuum leak on the intake, but I replaced the intake gasket on Monday. Now it idles fine, but when driving it hesitates, except on WOT. I talked to a guy that had the same problems, replaced his o2 sensors and the problem went away.
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06-08-2003, 02:11 PM
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I'd hit it
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Join Date: Dec 2002
Location: Greer, SC
Posts: 388
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While we are on the subject, how much and what size is it, and who is it made by?
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06-08-2003, 02:23 PM
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Registered User
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Join Date: Oct 2002
Location: folly beach, sc
Posts: 8,114
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the one I have right now is made by westach. Theyve made FAA certified gauge for a looong time. They hold the patent for the first electric tachometer. its a white face. The neat thing about this one is that its an analog one instead of the kind with the flashy, annoying lights. Im pretty sure it cost me around $60... I intended just to use it on my car but my car came with one that matched my autometer cluster. Its brand new in the box.
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06-09-2003, 02:48 PM
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I Brake 4 Steak !!!
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Join Date: Dec 2001
Location: Inman, SC
Posts: 3,519
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just swap it to a carb and give me your efi stuff |
06-10-2003, 10:54 AM
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I'd hit it
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Join Date: Dec 2002
Location: Greer, SC
Posts: 388
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I dont think so.  You must have been doing a lottle of this. 
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06-13-2003, 11:16 AM
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I > Chris
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Join Date: Dec 2001
Location: Chesnee, Cow capital of the world.
Posts: 339
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dude..you just said he must have been drinking...and you misspelled lot by saying lottle?!
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High Tach Motorsports
AIM:HighTach WRX
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06-13-2003, 11:54 AM
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MMM nothin like some good
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Join Date: Nov 2002
Location: Campobello,SC
Posts: 490
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he meant little...
Last edited by Katana200sx; 06-13-2003 at 12:16 PM.
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