1993 runs rough and when you put on pedal stalls

1993 VOLVO 940
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DIWSE30
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Engine Performance problem
1993 4 cyl Two Wheel Drive Automatic 240K miles
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I changed fuel pump relay , got gas at rail, changed crank pos sensor, fires will not stay running sounds rough like its not running on all four. before it would not start at all untill i changed the crank pos sensor. help !!!!!!!!!!!!
Aug 17, 2008 at 3:26 PM
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SERVICE WRITER
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HAve you checked for spark at each cylinder?
Aug 17, 2008 at 3:37 PM
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DIWSE30
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have spark at all but I get it to start and it seems it not running on all 4 and stalls out unless I push the gas pedal in and runs rough
Aug 22, 2008 at 4:35 PM
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SERVICE WRITER
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IF spark is good, then check and make sure fuel pressure is in spec.

Check timing and check compression.
Aug 22, 2008 at 7:18 PM