Gotta non-starter over here!!!
#1
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Location: Louisville, Ky
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Gotta non-starter over here!!!
The last time I drove the car it would idle really low and at stop lights I would have to keep my foot on the gas to keep it running. I made it to work like this and then while I was at work I went out and tried to start it. It would not start and I had to get it towed home. So far I have checked compression, I got 90 PSI on both rotors using kevin landers method with the conventional tester. I have 32-34 PSI fuel pressure after the filter, I took the line off the top of the fuel filter and teed my gauge between it the rigid line that runs to the fuel rails. I have spark, I have 12V at the main relay, I have continuity through the relay when it is energized and I have 12V and the leading coil. I took my CAS out and left it plugged in with the ignition switch in the run position and turned the gears on the CAS and could hear the injectors clicking. My battery was getting weak so I did all this testing with the battery jumpered to another car. After all this still not even trying to fire. Not even the slightest burp of RPM's. Anything I am missing? I am at a loss here. Any help would be appreciated.
#5
Yah, just measure the resistance at the ground pins at the ECU. Also what you could do is physically ground the ECU ground pins by using a jumper (or aligator clips or whatever could be used to ground the ECU) to the frame near the ECU. If your car cranks up then your grounds are corroded.
#7
Did you check voltage at the injector pins from the ECU? Also are you getting any volts on the grounds? Also how sure do you have spark? Did you take them out and physically see them spark?
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#8
You said you did a compression test, but did you pull all 4 plugs and check them? Spend $20 and buy a new set of plugs.
Also, with the plugs out pull the Fuel Inj fuse and crank the engine over to blow out any residual fuel. Then put the new plugs in. If it does not start after that then pull the plugs again and ensure that each one actually has spark. If they all spark then shoot some oil into the Spark plug holes. Turn the engine over with no plugs in it. Then put the plugs back in and try to start.
Also, if you the engine is not able to hold idle, check your Throttle position sensor.
If it holds idle but sounds like a piston engine with a big cam then you may have a broken seal and are losing compression on two sides of one of your rotors.
Also, with the plugs out pull the Fuel Inj fuse and crank the engine over to blow out any residual fuel. Then put the new plugs in. If it does not start after that then pull the plugs again and ensure that each one actually has spark. If they all spark then shoot some oil into the Spark plug holes. Turn the engine over with no plugs in it. Then put the plugs back in and try to start.
Also, if you the engine is not able to hold idle, check your Throttle position sensor.
If it holds idle but sounds like a piston engine with a big cam then you may have a broken seal and are losing compression on two sides of one of your rotors.
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Jeff20B
1st Generation Specific (1979-1985)
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09-16-18 07:16 PM