Mechanics

INTERMITTANT SPARK CYLINDERS 2-3

1993 Mitsubishi Eclipse • 4 cylinder FWD Automatic • 166,000 miles


i have a 1993 mit. Eclipse 2.0 non-turbo and im getting intermittant spark on cylinders 2 and 3.I have already changed the computer, coil pack, and power transister module(all used parts from wreacking yard) its always when I first start the car this problem occures. Once the car is started it never fails. When it does fail if I try long enough the spark will come back. Any ideas?
Avatar
Elherron
May 22, 2011.




Have you checked the crank and cam sensors?

KHLow2008
May 22, 2011.
Since 1 and 4 fire at same time is there 2 outputs from the cas

Tiny
Elherron
May 23, 2011.
There is one output for 1 and 4 whreas 2 and 3 has another. If the sensor gears are faulty, they could miss when at 2 or 3.
AD

KHLow2008
May 23, 2011.
Ok cool that will be the next thing I try I will let you know thanks alot

Tiny
Elherron
May 23, 2011.
You're welcome.

Check the gap between sensor and sensing gears. Look for uneven/wavy movement of the sensing gears and chipped teeth.

KHLow2008
May 23, 2011.

AD