I have an 89SC in the driveway with a crank no start condition. It turns over fine. It will rarely spit and run at very low rpm for a few seconds. It dies with any throttle increase. It reeks of fuel and puts a black cloud out the pipe while running. Other times it acts as if the timing is off and the crank almost stops.
After a lot of reading here I have checked the following :
1 The fuel pressure is 39 psi at key on. While cranking it drops to 37. Key off it holds 39 for at least 15 minutes.
2. The upshift light comes on at key on and goes out during cranking.
3. The cam sensor seems good as unplugging it makes no difference in the no start cindition.
4. The coil primary is 8-9 on two and 13 on the other. Is this enough to cause a problem? The secondary is 13.5k on all three. In addition one of the plug wires was not on and the wire is burned through at the plug boot.
I do not have a digital logic probe to do the tests on the dis module. Is there another way? I do not have access to another SC so can't borrow parts to test. I plan to replace the coil pack and wires first.
Any ideas or things to try before I start tossing parts at it?
Thanks
Paul
After a lot of reading here I have checked the following :
1 The fuel pressure is 39 psi at key on. While cranking it drops to 37. Key off it holds 39 for at least 15 minutes.
2. The upshift light comes on at key on and goes out during cranking.
3. The cam sensor seems good as unplugging it makes no difference in the no start cindition.
4. The coil primary is 8-9 on two and 13 on the other. Is this enough to cause a problem? The secondary is 13.5k on all three. In addition one of the plug wires was not on and the wire is burned through at the plug boot.
I do not have a digital logic probe to do the tests on the dis module. Is there another way? I do not have access to another SC so can't borrow parts to test. I plan to replace the coil pack and wires first.
Any ideas or things to try before I start tossing parts at it?
Thanks
Paul