It's not a security problem. The headlights and horn would be flashing if it was. You could have a shorted injector. I would disconnect all of them, and see if you can keep it running with carb cleaner while monitoring a noid light on the injector plug.

Answered by Wrenchtech (expert)
14,713 answers provided

Ok I will check it out with noid light.

Question: would the computer shut down ground pulse to all injectors if it sensed more draw/short on any given injector?

I will check coil resistance on all injectors and compare.

Response from j.stieg
92 questions asked

with all injectors unplugged I cranked the engine, and the ground pulse was only there for 2 seconds. After that there was no activity.

Response from j.stieg
92 questions asked

Could be a bad computer but all the wiring has to be tested first.

Answered by Wrenchtech (expert)
14,713 answers provided

I agree, Where should we start?
Should I test cam sensor circuits first, or what would you recommend.
Wiring diagrams go a long way and really help. thanks

Response from j.stieg
92 questions asked

Can you also get me a wiring diagram for ignition coil (COP) #4 , there are four wires on it, 2000 corolla 2.8l

thanks

Response from j.stieg
92 questions asked

2.8liter or 1.8 liter? Our reference shows only a 1.8 liter engine. Manual or automatic?

Answered by rivermikerat (expert)
5,494 answers provided

I meant to say 1.8l, and it is a manual drivetrain.
I need to check wiring on the #4 coil, It got four wires going to it. Thanks

Response from j.stieg
92 questions asked