Mechanics

HALF SPARK

2000 Toyota Corolla • 4 cylinder FWD Automatic •

I have no spark on two coils and spark on two coils. I moved the coils and ones that didn't spark now spark and the ones that did now don't. The two that do spark is 1 and 3 and the two that don't is 2 and 4.
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Mrock1985
July 15, 2014.




This means all the coils are good. What you need to check would be the wiring circuit and the Engine Control Unit.

KHLow2008
Jul 17, 2014.
Checked them. Even just now replaced the cps

Tiny
Mrock1985
Aug 20, 2014.
Update. I unplugged the cam sensor and now all four plugs spark. Replace the cam sensor and problem repeated
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Tiny
Mrock1985
Sep 1, 2014.
Did you check for trouble codes?

KHLow2008
Sep 22, 2014.
Yes but because the battery went dead there were none

Tiny
Mrock1985
Sep 23, 2014.
Run the engine and recheck for trouble codes. They are the key to what could be the problem.

KHLow2008
Sep 23, 2014.
The car don't even start

Tiny
Mrock1985
Sep 23, 2014.
Ok so the two coils that spark are weakish and orange. I really need to get this car running again soon. I bought a scan tool and so far it is of no help.

Tiny
Mrock1985
Oct 2, 2014.
I just found out that the car over heated and the belt broke. Replace the belt let it cool and that's when the problem started. It cranks fine. I do get an rpm reading but it does not start. It has 4 cop 2 which won't spark and the other 2 do spark. When I unplugged the cam sensor all 4 sparked weak and slow. Replace the cam sensor with no improvement.

Tiny
Mrock1985
Oct 2, 2014.

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