Question about 1994 Volvo 940

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Check engine light on for a couple months

Check engine light had been on for a couple months. weather got cool and engine had hard time starting and even when got up to operating temperature car would run smooth but hesitate when accellerating. The preheat hose had roted loose 1 year earlier so I had been driving without one - so thought maybe was the problem - ordered one and put a new one on and also checked the air filter as it had been replaced after the old preheat hose was removed. Thought was only happening when cold temperature outside (live in S.E. florida so cool means 55-70.
New preheat hose and air filter did not solve problem and now it has gotten worse daily whether outside temperatur is warm or cold. Barely made it to a mechanic as kept sputtering and missing. Mechanic read error code as 204 (he said) and replaced the water temperature sensor. The shop closed by the time they replaced the sensor - and I left to drive back home - about 5 miles. I barely made it home as the missing got worse and after stopping at a red light when it turned green and I started to accelerate the car bogged down and was missing and could barely move then it sputtered and could get up a little speed. Am going to have it towed back to shop tomorrow morning as when I tried to drive it today only made it half way down my residentil street and I turned around and sputtered back home. The mechanic also tried to reset the the check engine light but couldn't get it turned off.
Any ideas?

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  • Anonymous Feb 28, 2009

    I am having the same problem with my 91 volvo 940. The car sputters and has trouble climing hills but is pretty much ok once I'm up to speed on the highway. The mechanic told me there's oil leaking into my spark plugs and that's causing the misfiring and sputtering. I'll have to wait to Monday to have'm work on it so I'll see if that fixes it.



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Code 204 is 'injector circuit cylinder 4'
U may want to bring it to another mechanic to have the problem checked. good luck, let me know how u make out.

Posted on Dec 15, 2008


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