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Old 04-12-2010, 03:13 pm   #1
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Hi all - I've been chasing a hard cold start, running rich condition, as well as occasional intake backfiring. I tried the paperclip in the A & B terminals of the ALDL this past weekend and all I get is that the engine cooling fan comes on. I get no "check engine" light at all (with or without the paperclip in). Any help is appreciated, thanks,
Yellow 1987 Corvette Convertible Z52 (L98 - TPIS Miniram,BBK 52mm Throttle Body,TPIS ZZ 409 cam, TPIS chip and coated headers, MSD ignition, B&M 2400 stall TC, 9.5 & 11 inch Grand Sport wheels:D )

Red 1995 Corvette Coupe (All original and stock)
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Old 04-12-2010, 03:19 pm   #2
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HI there,

Check your injector resistance first, 16.5 ohms.

If you have enough shorted out, they could have fried the ECM.

Post your test results.

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Old 04-12-2010, 03:47 pm   #3
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I did replace the injectors last year with FIC's. Would the car still run with a bad ECM? I still get all mileage and other info in the info display and the car runs fairly good or the most part once it's warmed up
Yellow 1987 Corvette Convertible Z52 (L98 - TPIS Miniram,BBK 52mm Throttle Body,TPIS ZZ 409 cam, TPIS chip and coated headers, MSD ignition, B&M 2400 stall TC, 9.5 & 11 inch Grand Sport wheels:D )

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Old 04-12-2010, 07:09 pm   #4
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Yes, please post test results anyway.

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Old 04-13-2010, 08:40 pm   #5
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All injectors test between 14.1 and 14.4 ohms. Is this too low a reading?
Yellow 1987 Corvette Convertible Z52 (L98 - TPIS Miniram,BBK 52mm Throttle Body,TPIS ZZ 409 cam, TPIS chip and coated headers, MSD ignition, B&M 2400 stall TC, 9.5 & 11 inch Grand Sport wheels:D )

Red 1995 Corvette Coupe (All original and stock)
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Old 04-14-2010, 04:07 am   #6
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Hi there,

It is lower than what it should be, but I would not think it would cause your ECM to fail.

You will most likely need to replace the ECM and then proceed.

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