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Post by mattwheeler12 on Jun 9, 2018 20:21:54 GMT -5
The car has a new Ron Francis mg 65 harness, new distributor and the car shows .7 volts on the tps the car will pulse the injectors a few times and then stop the car will try to start until the injectors stop pulsing. I have checked all my grounds
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Post by Stinger on Jun 9, 2018 21:11:51 GMT -5
What ECU?
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Post by mattwheeler12 on Jun 9, 2018 23:35:53 GMT -5
86 thunderbird turbo coupe I purchased the pimp x but haven’t installed it yet
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Post by mattwheeler12 on Jun 9, 2018 23:37:28 GMT -5
It’s not in a turbo coupe though it’s in a chevette that I’m building
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Post by Stinger on Jun 9, 2018 23:44:57 GMT -5
How are you verifying when the injectors are firing and when they aren't? Will it start on starter fluid?
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Post by mattwheeler12 on Jun 10, 2018 10:49:33 GMT -5
A Noid light and yes it will start if I spray it
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Post by Stinger on Jun 10, 2018 23:17:28 GMT -5
It's not connected to key switch crank vs run at all correct? I know a lot of people have had issues where an engine will run while cranking and as soon as they release the key it loses injector flow or spark from a bad key switch. It doesn't sound like you're saying it's like this but I want to be sure.
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Post by mattwheeler12 on Jun 11, 2018 5:55:41 GMT -5
The purple wire on my harness is connected to a 12 bolt start signal at my starter and the orange wire has 12 volts in the run and crank position I’ve already double checked those wires. Even though the injectors stop pulsing it don’t stop firing
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Post by mattwheeler12 on Jun 11, 2018 7:26:43 GMT -5
Also I had never heard the car run that the computer had come out of. I’m starting to think that the problem is in the computer and that I should go ahead and hook the pimp x up.
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Post by Stinger on Jun 11, 2018 8:56:34 GMT -5
Scanning for codes is a pretty good test of ECU function as a bad ECU typically won't output codes at all.
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Post by mattwheeler12 on Jun 11, 2018 12:10:26 GMT -5
I went to scan for codes yesterday but but my scanner has been giving me fits and freezing. I hooked up the check engine light up and shouldn’t I be able to count the codes off that and if so it doesn’t blink to give any codes
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Post by Stinger on Jun 11, 2018 13:10:27 GMT -5
I "think" that should be the same but I've never done the check engine light method with a bad ECU so I don't know how it reacts for sure.
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Post by mattwheeler12 on Jun 17, 2018 0:52:15 GMT -5
Now that I have switched to the pimp I don’t have any injector pulse at all I have stock injectors and have jumper jp2 and jp19 installed
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Post by Stinger on Jun 17, 2018 2:33:30 GMT -5
Start a new thread in the PiMPx section along with a datalog of it cranking for a few seconds and a description of the previous/current issues and prior diagnostic results.
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Post by xtcnagt on Sept 18, 2018 20:56:41 GMT -5
No jumpers on low z stock 35lb inj
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