Question about 1996 Saturn SW

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I have a 1996 Saturn Sl2. It ran out of gas one day and sat on the side of the road for a few days. Well, I finally got it towed home, and changed the fuel filter. The fuel pump is good. But, it is smoking REALLY BAD now and its grey smoke and smells like gas!!! I've changed the starter, fuel filter, battery, and clutch. ( It's a 5 speed ) I pulled the spark plugs out and they are soaked with gasoline. I just came inside from checking my regulator, and the vacuum line has no fuel in it. And iv already checked my injectors, NO leaks. NOW, idk what to do. And it smokes worse as i drive and does not clear up. While in neutral, i can floor it and the RPM's do fine. But when in gear, It takes FOREVER for me just to get to 60. Ive also checked the timing. It's on time. It boggs down BAD while going up a hill, but gets a LITTLE bit better while going down hill. Thanks for ANY help. James Booth

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Try changing your engine temp sensor, it won't triger a fault code but sets ecu to a defalt setting of -20 or 200 degrees, causing an over fuel situation. Not a garanteed fix but for under $20 it is worth a shot.

Posted on Jan 10, 2012

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Posted on Jan 02, 2017

reactman
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SOURCE: My throttle body on my Saturn SL2 is NASTY!!

That could be why: So little air may be getting through, that it is causing it to run very rich. First thing to do, while the engine is running, spray a little of that EFI cleaner down the throttle body. Then, IMMEDIATELY, shut the engine off (You don't want tar going INTO the engine). After that, try and get the throttle body off, and CAREFULLY scrape away the road ****. Don't damage the injectors. Clean it nice, and see if it runs a bit better. Best wishes, and I'm curious how it got so much build up! It could cause worse problems down the road if there is tar in the engine ...

Posted on May 30, 2011

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SOURCE: Whenever I go up a

most likely not. It needs to be scanned, and fuel trims noted. If its needs more gas it will read positve trims. and fuel pressure needs to be tested under load. I would start there. if that checks out ok, check the cat converter for being plugged.

Posted on Aug 12, 2011

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I have a 1996 Saturn Sl2. It ran out of gas one day and sat on the side of the road for a few days. Well, I finally got it towed home, and changed the fuel filter. The fuel pump is good. But, it is smoking...


Here are your possible problems. 1)Leaking injectors(Rare), Leaking Fuel Pressure Regulator(Common) Bad Engine Temp Sensor. (Common), Here is what i would check. Find the Regulator and pull off vacuum line, (located on fuel rail near injectors) check if there is fuel present in line. If yes replace regulator. Check temp sender with a scanner your looking for a reading in the (-) or below 140deg F, when car is first started and smoke present if yes replace engine temp sender for computer(not sender for guage!) IF both those pass inspection replace injectors(Not common problem)

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