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Daryl, Shop Owner, Certified Mechanic
Category: Car
Satisfied Customers: 12549
Experience:  28 years experience, Master Mechanic
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neon: will only run on 2&3 cylinder no fire from coil on 1 and 4

Resolved Question:

1999 plymoth neon will only run on 2&3 cylinder no fire from coil on 1 and 4
Submitted: 6 years ago.
Category: Car
Expert:  Daryl replied 6 years ago.
This can be caused by a few other reasons, the timing being off can cause this and the cam sensor can cause this, there is also a possibility that there is a wiring issue, it will take a lot of testing to be sure which is causing the problem (and a scan tool may be needed). If I had no testing equipment I would replace the cam sensor and check the timing marks.
Customer: replied 6 years ago.
When you speak of timing are you suggesting a timing belt issue
Expert:  Daryl replied 6 years ago.
Yes it is possible that it jumped timing a tooth or two.
Customer: replied 6 years ago.
I have good compression on all cylinders I have no spark from half of the coil the car will run but only on two cylinders could a cam sensor cause this. what fires the coil. The computer or something else
Expert:  Daryl replied 6 years ago.
If the timing was just off a little it could still cause this and the compression would not be affected. The crank sensor and the cam sensor have to be in time and that sends info to the computer which in turn fires the coil.
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