All of the sudden out of nowhere my car decided to idle very rough when I was on my way home and if I didn't give it gas it would eventually stall.

I went straight to Autozone and had my check engine light checked, and it said something to do with a Coil pack failure on two of the cylinders. So I replaced the coil pack and it is still idling very rough!?

Any ideas?

I have to drive 3 hours down south tomorrow morning, so if I could pull an all nighter and get this problem fixed tonight before I have to go back to school it would be great!

Check the coil pack harness, especially around the area of the EGR pipe, as things tend to melt and short out around there.

May want to install fresh plug wires and sparkies too, to round out the whole ignition system.

2gnt: '99 RS-T, killed by a toyota, pending rebuild...
Daily: Volt
Daily #2: '99 EVG ebike- STOLEN by PEDRO

Alright I'll check that but I just replaced the plugs and wires about a month ago

Yeah double check those plugs and wires. Any small thing like that could be throwing it off.

Car Status: P0140 o2 circuit number bank 1 sensor 2 Cel. Ill fix it tomorow lol.

Estimated mileage on engine: 15,xxx

Well my valve seals are leaking can that leak into my spark plugs and foul them out and cause the rough idle?


EDIT: Replaced plugs, still very rough idle. This is ridiculous this just starting doing this out of nowhere.

EDIT....AGAIN: Found out the problem, it's my EGR it through a code for that, so I tapped the EGR with a hammer a little bit and it idles fine now.

Think im going to look in the forums about eventually deleting the EGR

EGR block off FTW. i wish i still sold plates

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Outside of Corona: "That sucks, peace out..." (jamie walks away)... "Sweeet, what we doin?" -Zac
Tim's garage (prior to motor install): "Im gonna smoke real quick, that way if you fuck up I am already nicotined up" -Tim