im only running off 2 cyl, dont know why

1998 MITSUBISHI ECLIPSE
92,000 MILES • 4 CYL • FWD • MANUAL
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MUD4594
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i have a 98 eclipse spyder gs 4cyl 2.4 l engine. i'm only running off of 2 cylinders and don't know why. i have replaced the ingition coil, fixed and checked the wiring harness, and tried a new ecm...the only thing i havent tried is the crankshaft postion sensor and the camshaft position sensor. isone of these goin to fix my problem. im at a total loss
Feb 13, 2011 at 6:02 AM
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MHPAUTOS
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Check leads, plugs and injection at those cylinders, which cylinders are not firing?

mark (mhpautos)
Feb 13, 2011 at 6:16 AM
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RASMATAZ
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The crankshaft position sensor tells the computer which cylinders to fire-
Feb 13, 2011 at 6:24 AM
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MHPAUTOS
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if the CPI sensor is faulty you will not get a signal at all, and that is also for a cam sensor, there will not work on selected cylinders to give you this type of problem.

markk (mhpautos)
Feb 13, 2011 at 6:27 AM
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MUD4594
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ive checked the plugs and injectors, 2 and 3 arent firing at all. thats what i thought about the sensors, they would not fire at all...im at a total loss here, any new input?
Feb 13, 2011 at 6:43 AM
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MUD4594
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of course im down to go buy both damnsnesors and see if anyhting changes, just for the sake of trying everything
Feb 13, 2011 at 6:44 AM
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RASMATAZ
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ive checked the plugs and injectors, 2 and 3 arent firing at all.

Check and test the computer ground drivers for the injectors
Feb 13, 2011 at 7:10 AM