98 Eclipse Poor running and Backfire

[beegolden]

I just purchased a 98 Eclipse with 94K,this car has very bad exceleration and backfires once in a while. Now to explain when you start off at an idle it take some time to excel it is like something kick in and give it a short burst of energy and then back to poor exceleration this does this regardles of hot or cold. This is a ebay car that I drove 650 miles to my home. In searching I found alot about the IAC and the TPS, does anyone think this could be my problem or please point me in the right direction.

Thank you

[MexRocket]

turbo or non?

[beegolden]

Non Turbo

[SLoe]

Backfire makes me think ignition system problems. Put your car info in your signature to save time in the future, WHEN you have your next problem.

[blk_srt]

Check your plugs and make sure they are ok, I would probably replace them regardless to be safe. Check your plug wires. Check the coil. Try those 3 things first, like loeman said a backfire is usually an ignition issue

[EDMUND65]

is your engine light on?

[beegolden]

Thank you,
I wll replace plugs and wires and go from there

[beegolden]

Replaced plugs and wires and the car runs 100% better, still smells a little rich but I can't complain.

Thank you

[l_eclipse_l]

Originally Posted by beegolden

Replaced plugs and wires and the car runs 100% better, still smells a little rich but I can't complain.

Thank you

Did you re-gap them? What plugs did you replace them with...

[SLoe]

Originally Posted by beegolden

Replaced plugs and wires and the car runs 100% better, still smells a little rich but I can't complain.

Thank you

Great, I'm glad it worked out.

[beegolden]

I used Bosch double plattin plugs that stated they did not regaped also used Duralast wires.
David

[l_eclipse_l]

Originally Posted by beegolden

I used Bosch double plattin plugs that stated they did not regaped also used Duralast wires.
David

Theres your problem for running rich. Wrong plugs my friend. Unless you feel like dropping another $12 on the correct plugs, don't worry about it.

[WrecklessMM]

my 1997 gst had idling problems. everything lead me to the iac and throttle body sensors it ended up being the ecu engine computer under the dasboard. picked one up a junk yard for 175 never kno could be your problem

[400sbc_guy]

i just bought a 96 eclipse rs 2.0 dohc non turbo auto. needed a crank sensor and a ecm. got it started and runs good @ idle. rev up and it cuts back and fires out exh. cut cat off put new plugs ngks and no improvement anyone know how to fix or have same problem?

[Blackcrow64]

Originally Posted by 400sbc_guy

i just bought a 96 eclipse rs 2.0 dohc non turbo auto. needed a crank sensor and a ecm. got it started and runs good @ idle. rev up and it cuts back and fires out exh. cut cat off put new plugs ngks and no improvement anyone know how to fix or have same problem?

Please check the last posted date of a thread before bringing it back from the dead... Do not bring back threads older than a month unless you are the original poster of the thread or have some critical information that needs to be added to a thread...

(AKA, you should probably make a new thread for your problem in the problem diagnositics section... Thank you.)

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