6G Celicas Forums

Yeah the whole dozen of right answers always sucks. I'm going to try with the free stuff first. Check timing, compression, switch plug wires from a different cylinder etc. Hopefully I'll get some hints that narrow it down some.

Also I don't see a coil on the distributor, looks to me its on firewall...

You can see the oil.That's all it is, if that enough to be my problem? If so how do I fix it? Pull the distributor and replace a seal/oring?

Ok. So new cap and rotor are on. Drove for about 70 miles then the light came back on. The Cap and Rotor I took off looked to be good. There was a tiny bit of oil, but nothing really on the cap itself.

Good info. I'll give that a shot. Let's hope its not the intake manifold... Replacing one of those on my 5.7 vortex suburban this stretch of days off...notnlooking forward to that at all.

I've got a Wells brand Cap and rotor coming, along with a new set of plugs. I've got 2 days left of work before 4 days off. So I'll take a look at the injector oring for damage and run some seafoam through the brake booster vacuum line.

Thanks again for the help and direction.

I haven't checked compression on it yet, but it runs great and isn't miss firing or down on power from what I can feel at all. Not ruling it out, but from the way it runs I think it is more along the lines of the ignition system.

So on the distributor cap. I looked at the box store websites for a distributor cap, and you can get Bosch, AC Delco, etc all for $15-20. It seems hard for me to believe that price would get me a cap and a coil...Sorry for some of the stupid questions. I am working 12 hr shifts right now with 3 hours of driving. So I haven't even had time to pop the hood and look. But i'm trying to order parts so I can get it knocked out on my days off.

Again thanks for all your input. I am a dirt bike and 4x4 guy. So this motor and car I am not to familiar with.

What distributor cap is recommended?

Awesome thanks. All good info. So is it the consensus that OEM plugs and wires are best? I know it seems every vehicle tends to like different stuff. What are the OEM plugs and wires.

And just for clarification, the ignition coil is on the disti cap or the actual disti?

So I just picked up a 96 GT. Guy I got it from said it had a rough idle and check engine light would come on occasionally. Had a rough idle, but CEL was off when I test drove it. Of course it showed up the next morning...

So here is what I know now. CEL is throwing a P0302 code. It only happens if I let it idle for a bit, like warming it up on a cold morning. Before I drove it home after buying it (4hr drive) I cleared the light it and it never came on.

At idle it is rough, but as soon as it comes about 1000rpm it smooths right out and runs really nice.

I checked the plugs today, all looked good. It has midgrade NGK's in it.

I've been looking for some pointers for a couple days now, and have searched on here.

Most reference a coil/plug set-up. So does my Celica have just a standard single ignition coil mounted on the fire wall?

How likely is it that plug wires are my issue? The ones on it are tiny and look to be a generic set. Would a set of better insulated NGK wires help? I know that wires can get interference and cause some firing issues if not well enough insulated.

And help or input would be great. I'd like to at least narrow it down to 1 or 2 things before I start throwing money at it.