No power to coil

[daytona90]

alright i can not get my car to start. There is fuel but no spark. I tested for power at the coil while cranking and get nothing. I have replaced the distributor and still will not start. What are some other test i can do to figure out where the problem is. Thanks

[turbovanman²]

If your getting power to the pump, then the ASD relay is ok. I would disconnect the coil + and recheck it for 12 volts, remember, you only get it when you crank and its on for aprox 5 secs when you turn the key on. When it starts, you get + voltage.

Do you have any codes?

[gvare001]

Could be a couple of things. Check your ASD relay, check your pick up sensor also. Any codes?

[daytona90]

I disconnected the + lead to the coil and rechecked all i got was .019 and that # jumped from 0 to .019. The pickup is new. What do i try next?

[gvare001]

You sure you hear the pump prime when you turn your ignition to on?

[daytona90]

It must be a good pump because i never hear it but I pulled the plugs and they all had fuel on them. Plus i pulled the fuel line and got hosed with fuel. It is a new engine, fuel pump , fuel lines, fuel rail, so the pump has to be working to have primed the line.

[turbovanman²]

I disconnected the + lead to the coil and rechecked all i got was .019 and that # jumped from 0 to .019. The pickup is new. What do i try next?

What is .019???????????

Any codes?

You say new engine, are you sure its timed correctly?

[LynX853]

i have the same problem. no voltage to coil. new distributor, and pickup. fuel pump primes. was intermittent on starting, I would even hold it at 2 grand and it would just flat out die. now it won't start at all. I'm pretty puzzled myself.

I'm sure its not ASD relay because that would cut power to the fuel pump too right? what else controls ignition?

[daytona90]

.019 is what i get when i first turn the key on and when i start to crank the # jumps around between 0 and .019. I noticed that the wires are spliced the grn/red is + and the blk/gry is - Is there a way to test the wires and make sure there going to the correct terminal.

[gvare001]

Is your daytona a VNT?

[daytona90]

its a 90 tbi converted to turbo. 91 shelby wire harness, sbec is from a 91 sundance i think.

[cordes]

Does anything else not work in the car when it is doing this? I chased a problem in my shadow for about 6mo this year and it ended up being the ignition switch itself. The switch wouldn't allow power to an entire bus in the fuse block and also wouldn't give me any spark. I would have to look at my FSMs again to see what goes where, but I finally figured it out by tracking the non working feed line to the fuse block back to the switch.

[gvare001]

So you have the harness with the fuse block? Do you have any spare ECU's?

[LynX853]

according to allpar a bad halleffect pickup will make it so there is no voltage to the coil. the new halleffect will be in tomorrow, so hopefully it works. it might be worth checking yours out too, that is if your new distributor didn't come with one

[turbovanman²]

.019 is what i get when i first turn the key on and when i start to crank the # jumps around between 0 and .019. I noticed that the wires are spliced the grn/red is + and the blk/gry is - Is there a way to test the wires and make sure there going to the correct terminal.

I honestly don't have a clue what your talking about, what the hell is .019?

You should be seeing battery voltage at that wire, 12 volts at least if the battery is charged.

its a 90 tbi converted to turbo. 91 shelby wire harness, sbec is from a 91 sundance i think.

I would say if your NOT getting 12 volts, then you need to start tracing and pinning out your wiring as you could have a wiring problem.

[daytona90]

the only other sbec is the stock tbi one and a smec don't think that will help me any. The lights, blower, fan, all work the fan comes on while cranking not sure that it should and it is a fuse box harness

[daytona90]

.019 volts is what i get with my voltmeter connected to the + coil and grounded with the key on.

[daytona90]

I honestly don't have a clue what your talking about, what the hell is .019?

You should be seeing battery voltage at that wire, 12 volts at least if the battery is charged.



I would say if your NOT getting 12 volts, then you need to start tracing and pinning out your wiring as you could have a wiring problem.

How do you do this by following the wire and checking for power as you go?

[turbovanman²]

.019 volts is what i get with my voltmeter connected to the + coil and grounded with the key on.

Ok, that makes sense, volts,

How do you do this by following the wire and checking for power as you go?

You need to look up the what pin is what at the SBEC connector and then use an ohm meter to test the wiring and make sure the wiring is in the right spot.

You still haven't told me if you have any codes?

[cordes]

Set your multimeter to check for continuity and put one lead where the power comes out, and the other end at the connector for the coil. If it doesn't beep at you, there is a short or break in the wire somewhere. Move back from the coil to the power source until you find the problem.