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DFI and ECM Discuss all aspects of DFI (Digital Fuel Injection), ECMs (Electronic Control Module), scanners, and diagnostic equipment. Fine tune your Third Gen computer system for top performance.

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Old 07-04-2002, 11:11 AM   #1
Junior Member
 
Join Date: Jul 2001
Location: Pittsfield, MA
Posts: 54
Car: 1989 Firebird Formula
Engine: 350 tpi
Transmission: 700R4

Classifieds Rating: (0)
Could my ECM cause this?

My car hasn't ran right for about a month now. First it was hesitating and had a surging idle. But for the past couple weeks it won't start. Here is a list of parts I've changed: coil, cap rotor, ignition module, wires, IAC, EGR, MAT, TPS, MAF, CTS, fuel filter, injectors and fuel pressure regulator diaphram. When I crank the car it will kinda sputter for a few seconds if I give it gas but it won't really start. I can smell alot of gas. I drained the oil once and there was a ton of gas in it. The fuel pressure is high and it drops of quickly. Thats why I changed the regulator diaphram but it still didn't help. Before I changed my old injectors I tried testing them and I blew my 10 amp injection fuse. I changed the fuse and since then the car won't start even after the new injectors. Did I hurt my ECM when I blew that fuse. Please help, I'm running out of parts to change.
__________________
89 formula 350 - sold
71 chevelle - 350, stealth ram, lunati 60122 hyd roller, afr 195 eliminators, 700r4 w/3200 stall vigilante, 12 bolt w/4:11's, airride suspension, 20" wheels I designed and machined myself
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Old 07-05-2002, 02:36 PM   #2
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Join Date: Jul 2002
Location: Glendale Heights , IL
Posts: 10

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Looks like you spent a lot of cash on sensors and injectors threw trial and error.
Not sure about your situation , but by a scanner for arond $200
and save some cash. Much better diagnostic tool then guessing.
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Old 07-05-2002, 02:36 PM
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