wire schematic

The computer makes it pulse. Do you have constant power to the injector and do you have spark?

yes it has constant fire on the a terminal but wont pulse

And the spark?

injuctor fuse could be blown. remove the air filter and inspect the injector harness if the harness has a exposed wire it will blow the fuse.gl

He has already stated the injectors have power. We're checking reference signal.

the fuse was blown changed that.but inj will not pulse. what should i check next.didnt see any bad spots in wire harness.car is cranking but one inj wont pulse

Do I understand you correctly that only ONE injector has a problem? Have you checked the signal with a noid light?

yes

That can only leave 2 things then. Either there is a problem in the trigger wire back to the computer or the quad driver in the computer is burned out. If the computer is bad, then you need to look for a cause like a shorted injector.

ok changeg ecm but still no pulse

So, diagnose it properly as it should have been before changing the ECM

ok so how do i do that?

You test all the wiring and injectors for opens and shorts and test all the power and ground inputs to the computer. If you are not equipped or knowledgeable to do this, then have someone do it for you.

ck fuse again if the blown ck the harness again. sometimes it gets shorted at the grommet through the valve body. disconect the harness and pull the grommet out.ck the fuse and turn key on.wiggle the harness around. ck. the fuse again if blown youll need to remove the tape to better check the harness. to ck. the injector swap the injector harnesses 2 see if the injector starts pulseing if no the injector is bad. make sure swap the harness back gl

Both injectors are powered by the same "ECM IGN" fuse so if it's blown, you lose both injectors but you stated earlier that you had power to the injectors at all times so can you clarify your response.

wrench tech is right but u got to find out whats blowing that fuse its got to be by the throttle body gl

yes i have fire to both inj but one is pulsing with noid light but one insnt wrenchtech what can i do to check the one that is not pulsinging

swap harness to see if inj. starts workin if no replace inj.need to stop that fuse from blowin gl

i changed inj an its still not pulsing.what can i do next.inj was bad

can anyone get me a wire schematic of inj harnest please

did u swap connectors for the injectors.and tell me what happens. if the wiring is bad the inj. inop.will work and the 1 workin will stop.is the fuse still blowing?

yea i swap it an it worked an fuse still good so what should i do now

does the dist send signal to ecm for inj signal

if the ing. fires when u swap connectors. its in the connector or wire. u can get a new connector at the dealer. it comes with wires to splice into harness.gl

thanks ill try that an let u no what happen thanks for all your help