Question about 1995 Pontiac Sunfire

1 Answer

Sputtering 98 sunfire

I have a 98 2.2liter sunfire. lately it has been sputtering at all speeds. brought it in and had it hooked up to a computer. the fuel pressure ragulator was changed. spark plugs were changed, fuel treatment and it still sputters and sometimes i have to push on the gas to get it to start

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 5 Answers

********There's 4 things an engine needs, Air Spark Fuel and a brain to tell them when to do which. If everything seems fine, fuel injectors are fine (right resistance), have spark, and your air filter isn't black, then call a dealership, (DO NOT go there, just call) give them your VIN number and ask if the recall has been done yet on the PCM gasket and if there are any other free recalls that need to be done. This car and the cavalier had a bad gasket on the PCM casing, allowing water to get in and destroy the main computer. Screws everything up and puts most of these cars in the junkyard long before 200k miles. Simple fix though, new computer, new connectors. It's located underneath the passenger headlight, the stupidest place to put it, so puddles kill the car and make it so it will sputter and eventually die. EVEN IF THE DEALERSHIP SAYS IT'S BEEN DONE, VISUALLY CHECK THIS!!!!! After I paid a dealership to do $400 worth of "general electrical work" that still didn't fix the problem, I researched it myself and found that even though the recall had been done, the guy botched the job and water still got in. SPUTTERING AND THEN DEAD. Sound Familiar?

Air Spark Fuel and Brain

First make sure your Air filter is clean, and that it is able to **** air into the airbox. If leaves clog the air intake cause it's near the ground, no air, no combustion. Take off the cover to the air filter, check the air filter, if it's black at all, change it, tan-light brown can stay a little longer. Leave it on the top part of the air box and try starting the car, so that the air that gets sucked in goes through the filter but doesn't come from the air box, just the ambient air around the engine compartment. If it runs without being contained in the filter housing, then you either have critters, a critter nest, or you sucked up a bunch of leaves that are blocking the air flow. Compressed air, have fun with it. Getting air? Good, now is it getting spark.

What you want to do is check if there's spark at all 4 plugs. You can go to the auto parts store and pick up a spark plug tester that plugs into the wires and clips to the engine and allows you to see the spark, or you can do it the fun way. Remove one by one, clean em off with a rag and test them by pressing the threaded side of them (obviously don't touch the metal, use the wires to hold em) to the engine block for a ground. Have someone try to turn it over for just a second, if it turns twice, but you don't get a spark, verify it by doing it again. If they're not firing, replace plugs and wires, try starting it. Test the cam and crankshaft sensors and last the ignition coil-packs. If this is the 2.2, they're on the back of the engine and accessible from underneath.

If the plugs fire, great, now check the fuel. Get out of the car, take the gas cap off, and put your ear to the hole while someone turns the key on, without starting it, for 3 seconds then turns it off a couple times. If you can hear the whirring sound, good, if not, check the fuel pump, fuel filter, relays and fuses. Now the injectors.

Time for the voltage meter! Get a voltage meter that measures Ohms, (symbol of a horseshoe) which is the resistance through something. Unplug the injector, touch the two posts inside the injector with the ohmmeter, and see what it says for each one. If the injectors don't have the right resistance, they're bad and need to be replaced.

Here's the specs...
For 2.2L OHV engines:
1995 - 11.6 to 12.4 Ohms
96&97 - 11.8 to 12.6 Ohms
98 to 2000 - 1.95 to 2.3 Ohms
01 to 02 - 11 to 14 Ohms
For 2.2L OHC engines:
2002+ - 11 to 14 Ohms
For 2.3L (1995) and 2.4L OHC engines:
1995 (2.3L) - 1.95 to 2.15 Ohms
1996 to 98 - 1.95 to 2.3 Ohms
99 & 2000 - 11.4 to 12.6 Ohms
01 and 02 - 11 to 14 Ohms

If they give the right readings, test the connectors to the fuel injectors with a NOID Light, available to buy or rent from most auto parts stores to see if the injectors are getting the signal to fire. If they aren't, the NOID Light won't flash and there's a problem with your computer or the link to it. Visually check the PCM again and connectors for corrosion. Once again, there was a recall on the PCM housing that KILLS MOST OF THESE CARS. . Good Luck.

Posted on Feb 16, 2009

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

95 sunfire back fire and sputtering ,low power when take off then will speed up and act proper

The problem could any one of several issues. I suggest you have the vehicle's computer scanned for trouble codes, which will identify where the problem is. Auto Zone and Advance Auto will do a scan. Once you have the codes, they can be looked up on the web for more information about the problem with hte vehicle.

May 19, 2014 | Pontiac Sunfire Cars & Trucks

1 Answer

I have a 98 pontiac sunfire 2.4 . I just replaced the alternator and found out that it was missing the electrial plug. I located two cut wires but still no plug. I brought a 4 wire plug with pigtails from...

Hopefully this helps. In the wiring diagram the B+ wire is the large red battery cable that bolts to the back of the alt and is not part of the plug.



Apr 20, 2011 | 1999 Pontiac Sunfire

1 Answer

The engine sputters at higher speeds

Usually the spark plugs are bad. Fuel filter should be replaced after 60,000 miles also.

Feb 04, 2011 | 1998 Pontiac Sunfire

1 Answer

Looking to do a motor swap in a 98 sunfire...what motors fit?

It is true, you can only put another 98 2.2 liter in it. They did come with a 2.4 liter but you have to swap the motor, transmission, wiring harness, computer, and God knows what else. I would go with the 2.2 liter and check into some performance aftermarket parts for the 2.2, computer chip, performance exhaust and so on, somewhere like Summit Racing.

May 23, 2010 | 1997 Pontiac Sunfire

1 Answer

Speedometor stopped working?? for 98 sunfire

there could be a trans or speed sensor problem. I dont know about the light reminder ?? I would have a trans shop check it first.

Oct 02, 2009 | 1998 Pontiac Sunfire

1 Answer


To start off has the car had a good thorough tuneup lately? Plugs, wires, coils, fuel and air filter?

Jun 29, 2009 | 1992 Ford Taurus

1 Answer

98 Saturn SL 1 sputters

Have a scanner hooked up to your car and do a data stream to see if your knock sensor is still working. On a heavy load, if the ECM detects detenation in the engine, it will automatically want to ****** the timing to make it run better on a load.

Jun 10, 2008 | Saturn SL1 Cars & Trucks

Not finding what you are looking for?
1995 Pontiac Sunfire Logo

405 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts


Level 3 Expert

71525 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22059 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7029 Answers

Are you a Pontiac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides