Last Effort to save TBI
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Joined: Jul 1999
Posts: 760
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From: Chillicothe Ohio
Car: 89 RS 355/ 89 IROC Convert
Engine: Hot Cam 355/TPI 305
Transmission: All 700r4's
Last Effort to save TBI
OK guys I am about to go to Carb unless I can get this fixed. I have a RICH problem that will not go away. It is so rich it is blowing blue smoke. I have tried to get this corrected with the fuel pressure adjustment. I have had the bulk of the problem at startup can my E-Prom be causing this? Its a Ed Wright custom prom.
ANY IDEAS?
Brian Felts
ANY IDEAS?
Brian Felts
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Joined: Dec 2001
Posts: 1,997
Likes: 12
From: Bartlett, IL
Car: 92 ZR-1
Engine: LT-5
Transmission: ZF-6
Axle/Gears: SuperDana 44 4.10
Brian,
If you haven't put a scantool on the motor and done some custom tuning, I can almost guarantee you it is the calibration. No flame of Ed, but it happens whenever somebody does tuning "long distance" and puts in a chip that's "good enough". In just about every case, the tuner will burn a rich chip to be on the safe side. The chip you hav now could be a good beginning but certainly not the end. I got started tuning when I bought a
Turbo City Xfire chip. Idle was very rich. And 100 bin files later, here I am.
If you haven't put a scantool on the motor and done some custom tuning, I can almost guarantee you it is the calibration. No flame of Ed, but it happens whenever somebody does tuning "long distance" and puts in a chip that's "good enough". In just about every case, the tuner will burn a rich chip to be on the safe side. The chip you hav now could be a good beginning but certainly not the end. I got started tuning when I bought a
Turbo City Xfire chip. Idle was very rich. And 100 bin files later, here I am.
TGO Supporter
Joined: Jul 1999
Posts: 10,907
Likes: 5
From: The Bone Yard
Car: Death Mobile
Engine: 666 c.i.
I agree with Dominic, the ONLY way you are going to be able to address this problem is inside the eprom. Mechanical methods are band-aid solutions that don't properly fix the problem.
And, as for "custom eproms", you won't be the first that found out that they don't do very much unless you spend the time tuning your engine and burn it yourself.
And, as for "custom eproms", you won't be the first that found out that they don't do very much unless you spend the time tuning your engine and burn it yourself.
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Joined: Oct 2000
Posts: 1,062
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From: Pasadena, MD
Car: '87 Camaro IROC-Z
Engine: 385 HSR
Transmission: 700R4
Axle/Gears: 3.42 posi
Ummm, it's not rich if it's blowing -blue- smoke; your engine is burning oil. Check for oil getting sucked past the valve guides or seals, or your engine need to be rebuilt.
Joined: Jul 1999
Posts: 1,992
Likes: 10
From: CT
Car: 1986 Camaro SC
Engine: 305 TPI Procharged D1SC
Transmission: Tremec TKO-600
Axle/Gears: Moser 12 Bolt 3.73 posi
actually if it is running really rich it will wash the oil off the cylinder walls thus... blue smoke, do you have the original prom? if so put it back in and see if it cures the problem.
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