well now i just got a e-mail from a kid who says hes runnin his swap without a bcm? could somone put a meter on there injector feed (theres six of them not the main feed) and tell me wat the voltage is. i think thats were my problem could be coming from. i only had two volt cranking it so that just seemed low to me.
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motor swap, injectors not firing
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2 volts cranking that could be your problem. is that 2 volts on the injector feed or the whole car feed.
do you have a volt gauge inside the car. whats the gauge at when your cranking.sigpic
99 Grand Am GT
3400/3500 -Solid trans mount--TCE 65mm T-body---85mm LS2 maf---1 1/4' TCE intake spacers with 3400 upper--SLP Catback with flowmaster 80--TOG headers
Modded 3400 lifters with LT1 springs---Comp Cams 26986 Springs
1357 cam 227 233 .050 dur 515 515 lift 112 lsa
15.232@88.85mph on stock 3400---New time to come
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I'm just busting your stones Jon. I don't go around saying OBDI FTW, just had to say it this one time since OBDII security crap was giving you all a hard time. hehe
If it's 2 volts across the injector connector that could be because it's pulsing... 2 volts at the hot side (I think the PCM fires the injectors by grounding them) would be a problem.sigpic New 2010 project (click image)
1994 3100 BERETTA. 200,000+ miles
16.0 1/4 mile when stock. Now ???
Original L82 Longblock with LA1, LX9, LX5 parts
Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.
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Originally posted by 3400-95-Modified View PostUntil the day you give me something that you can do with OBDI that is not available with OBDII and is a extremely viable and necessity to performance then maybe I'll stop backing it so much.
makes nitrous/e85/whatever that much easier to deal with...
Originally posted by geldartb View Posthahaha id love to see someone OBD-1 swap a 5th gen Grand Am.
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i think my wrong terms might be messin things up. the "injector feed" is sending twelve volts. the outputs i think they would be called ( theres one for each injector) gets 2 volts coming from the ecm wen i crank the motor over. sorry for any confusion if there was any. im stumped ill check the ecm ground. i didnt know the ecm grounds the injectors thats very helpful. thanx
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go over the grounds all around the engine too.
im willing to bet though if Jon re-flashed the bin back so the VTD isnt disabled it might work.sigpic
99 Grand Am GT
3400/3500 -Solid trans mount--TCE 65mm T-body---85mm LS2 maf---1 1/4' TCE intake spacers with 3400 upper--SLP Catback with flowmaster 80--TOG headers
Modded 3400 lifters with LT1 springs---Comp Cams 26986 Springs
1357 cam 227 233 .050 dur 515 515 lift 112 lsa
15.232@88.85mph on stock 3400---New time to come
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