Last post on Aug 15, 2013 at 10:42 AM
You are in the Pontiac Sunfire
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Pontiac Sunfire, Coupe, Convertible
#208 of 306 Engine surges,eats up gas,sluggish acceleration
Apr 20, 2009 (2:33 am)
I have a 1995 Pontiac Sunfire Gt 2.3L....this car has been a huge problem ever since I bought it except now it got a lot worse. All of the sudden the other day my check engine light comes on with codes for a MAP sensor, O2 sensor, and fuel burning too lean. Right after the light came on, the car started running really rough. The O2 sensor code had already come up before but I had it replaced so it's only a month old. I just replaced the MAP sensor the other day. The car accelerates a little better but still way too sluggish. I'm not sure if it's misfiring but the engine seems to surge and vibrate rough when idling at a stop light. I also had a friend replace the spark plugs and while we were doing it we noticed one of the boots was taped to the cover, one of them was stuck inside the cover, and the other 2 were suctioned to the spark plugs. I'm guessing the guy who owned it last just rigged it so he didn't have to spend a small amount of money on boots or plug wires. Now I get about 5 miles to the gallon and sometimes the engine "surges" so rough that it feels like it wants to take off while i'm sitting at a stop light. A sudden powerful thrust. If anyone can help me i'd appreciate it greatly. Oh yeah, I can also smell gas burning strong.....i don't know if that means its rich or something.
#209 of 306 Re: Stalling Sunfire [2001pontiac]
May 05, 2009 (5:49 pm)
I am having the same problem and I was wondering on you grand prix did you get any movement from your tempature gauge inside the car? I think this is my problem with my car but I want to make sure cause my gauge doesnt budge or is it more than one problem?
#210 of 306 1998 2.2L Sunfire quit running
May 26, 2009 (2:27 am)
I bought it used three weeks ago. Plugs, wires, oil, filters, serpentine belt, tensioner, and all brake parts at the wheels changed.
Two days ago the check engine light came on. Yesterday, traveling at 65 mph, the car just quit running. I disconnected the battery leads and shorted them together, the car fired up, travelled 40 feet and died again. No other symptoms, just died. Now the car won't fire up.
Car has plenty of oil. No overheating. The only other thing wrong is two front tires that are out of balance, they cause the car to vibrate badly above 45 mph.
Is there a procedure to read OBD codes without a reader? Is there a specific procedure to reset the ECM/ECU? Where is the ECM/ECU located? Anyone had this same problem? Thanks.
#211 of 306 Re: 1998 2.2L Sunfire quit running [mkehayias]
May 26, 2009 (6:23 pm)
I have a 1996 Sunfire with a 2.4L and manual transmission. The same thing happened to me about 10 years ago. A weak battery was all the garage could find. The next day the car started and I bought a new battery. Never had the problem again and I still have the car.
#212 of 306 Re: 1998 2.2L Sunfire quit running [slackerman]
May 27, 2009 (1:59 pm)
New battery did not help. Plenty of fuel at the plugs (they are wet), no spark...
#213 of 306 Re: 1998 2.2L Sunfire quit running [mkehayias]
May 27, 2009 (5:36 pm)
Finally got my hands on a code reader, here are the three that were stored in order:
P0141 O2 Sensor Heater Circuit Malfunction
P0300 Multiple random misfire
P0141 O2 Sensor Heater Circuit Malfunction
I cleared the codes, cycled the ignition key, no new codes, cranked the engine, no new codes.
The O2 Sensor is shiney new.
I also noticed that the Theft Protection light never goes out, is it supposed to and when?
I don't feel like the codes are helping. Any ideas are appreciated.
#214 of 306 Re: 1998 2.2L Sunfire quit running [mkehayias]
May 27, 2009 (6:15 pm)
Sorry the new battery didn't do the trick. Try asashop.org. My mechanic is a member and my car is still running.
May 28, 2009 (2:26 am)
No worries, was going to replace it anyway...
#216 of 306 Re: Sunfire will be on fire pretty soon... [karleighskar]
Jun 02, 2009 (12:29 pm)
I had the same problem for a long time, replaced many things being told it was probably this or that, but in the end, they found it was just a vacuum leak that would only show up in certain conditions because of the way the hose was cracked. Long story short, they fixed the hose for free due to fixing all the other unnecessary crap. Hope it helps.
#217 of 306 pontiac sunfire/ chevy cavalier same power plant
Jun 10, 2009 (4:44 pm)
after all the minor problems of the car were fixed we could only get it to stall in drive. it never would stall in reverse. unplugging the tcc solenoid didn't solve the problem. we changed the tcc solenoid and the car runs great. no more stalling,no more shuddering, no more shaking