GTS swap will crank, start for a second, then die

InfernoAE86
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GTS swap will crank, start for a second, then die

Postby InfernoAE86 » Sat Sep 27, 2014 5:42 pm

I have an 86 sr5 that I've swapped in a bluetop out of an MR2, and replaced the wiring with zenki engine bay (chassis) harness, and kouki engine, underdash, and rear car harnesses. When I try to start it, it cranks, fires up for a second, then dies. Does anyone have any idea what could be wrong?
Here's a video of it happening. http://youtu.be/vo5XCVMksjY

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jondee86
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Re: GTS swap will crank, start for a second, then die

Postby jondee86 » Sat Sep 27, 2014 7:14 pm

The engine is running off the cold start injector. Check and make sure
you have 12V at the injectors when the key is in the ON position.

Cheers... jondee86
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davew7
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Re: GTS swap will crank, start for a second, then die

Postby davew7 » Sun Sep 28, 2014 5:01 am

There is a common ground for the 4 injectors. Look for 4 wires "brown" connected to a single eyelet, make should you a good connection. You may be able to feel the injectors pulse thru your hand, while someone cranks the engine to see if they are getting a signal to the injectors. 2nd option is to get a noid light from an autoparts to verify the signal. Most VOMs will not read such a short voltage signal. Dave W7

InfernoAE86
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Posts: 58
Joined: Mon Apr 28, 2014 12:23 pm

Re: GTS swap will crank, start for a second, then die

Postby InfernoAE86 » Mon Sep 29, 2014 3:46 pm

jondee86 wrote:The engine is running off the cold start injector. Check and make sure
you have 12V at the injectors when the key is in the ON position.

Cheers... jondee86


I was indeed getting 12V, and pulse, as verified by Noid light. Turns out my injectors were clogged.

davew7 wrote:There is a common ground for the 4 injectors. Look for 4 wires "brown" connected to a single eyelet, make should you a good connection. You may be able to feel the injectors pulse thru your hand, while someone cranks the engine to see if they are getting a signal to the injectors. 2nd option is to get a noid light from an autoparts to verify the signal. Most VOMs will not read such a short voltage signal. Dave W7

That was all hooked up. It turns out my injectors were plugged.

Thanks for the replies, guys! Now to figure out the trans. :roll: