problems at startup

spec-v-r33 · 2008-08-31 14:53:38

I have an 02 turbo spec (used PTI kit). Whenever i start it up it seems to misfire a little bit and blows white smoke out the back (not just a little, clouds). After a few minutes of driving (when the engine warms up) the smoke goes away and the misfire isn't there or isn't as bad. I also have codes p0101 and p0103 which are both MAF. The thing is, the car runs fine except for when i first start it up, and the car is not in limp mode. I was originally thinking blown turbo seals (i do have slight oil loss), but with the MAF codes I'm not sure. Any help is appreciated, thanks.

PS - Headgasket was replaced not even 200 miles ago when i installed the turbo, absolutely no coolant loss.

pregunta · 2008-08-31 15:47:50

i had a similar problem. I am assuming you have been turboed for longer than a week. My problem ended up being my return line being crimped. If thats not it give us some more details. Smell the smoke. Could be coolant leak into a cylinder.

Last edited by pregunta (2008-08-31 15:48:25)

Red_Spec · 2008-08-31 16:35:40

white smoke could mean the turbo is shot and the seals are leaking oil into the DP and its burning...

spec-v-r33 · 2008-09-02 01:54:54

Slight update - The p0101 and p0103 codes are gone. I now just have p0300 (random/multiple cylinder misfire) but i also have cams so this is normal(ish). The return line is a possibility, i have seen small oil spots on my driveway recently but haven't gotten a chance to check it out yet. Probably tomorrow or wednesday i will take a look at it and see where its coming from, but i would assume the return line. Recently the smoke has not been as bad, but the oil level is a bit lower. I've burned/leaked about half a quart over the past 2-3 weeks. I have the BSR mod done and put about 5.5 quarts in (so that it reads roughly half way up the dipstick).

keit29 · 2008-09-02 04:44:13

Am I the only one thinking piston rings? Try getting a leak down test. Even a compression check...

pregunta · 2008-09-02 06:55:14

keit29 wrote:
Am I the only one thinking piston rings? Try getting a leak down test. Even a compression check...

Could be. I was thinking the same thing when mine smoked. I was a day away from pulling the engine apart. When I decided to one-over the outside of the engine first...

But the rings are something to keep in mind. Compression test would be a good start.

spec-v-r33 · 2008-09-12 02:16:21

Another update - problem still not fixed. The p0300 remains, and the car is burning oil (which is why it's smoking). I looked at both sides of the turbo and they looked reasonable. The return line was bad, it was silicone i think and had a pretty bad burn on it causing it to kink. I replaced the line temporarily until i get a stainless steel line. I checked the spark plugs and this is my new problem. They had an orange film on them. I also shined a flash light down the hole and saw a good amount of carbon buildup, and even small wet spots which i'm assuming is oil. When i did the head gasket i cleaned off the pistons in cylinders 1 and 4 really well, and they are now black. Before everyone says piston rings, would this happen to all of the cylinders at the same time? What could possibly cause every cylinder to get oil in it? (i'm assuming the oil is what made my spark plugs bad). The weird thing is that the smoke goes away after the engine is hot. However, if the oil level is all the way full the smoke continues no matter whether or not the engine is hot. I am baffled, any input helps.

kc03spec-v · 2008-09-15 04:17:04

keit29 wrote:
Am I the only one thinking piston rings? Try getting a leak down test. Even a compression check...

yea. could be.

Could be Fuel seaping past the rings too, untill it gets warm and leans out a bit.

What happens at WOT?

spec-v-r33 · 2008-10-08 01:08:30

WOT everything seemed fine. The problem ended up getting worse so i ripped everything apart again. The head gasket was fine. I decided to replace the head studs (even though the old ones were within spec) and I now have an almost even 150 compression in all cylinders. I added some oil into each cylinder and got 175, however if i continued to crank i got as high as 205 (oops!). I'm assuming the rings are bad, but I want to get some second opinions. I thought about it, and adding oil into the cylinder will up the compression a little bit no matter what, but this was a sharp jump. At the same time, 150 isn't horrible, not good either, but not holy **** numbers like they were before (the compression was all over the place before the tear down). The fact that the rings held 150 psi without oil makes me second guess my opinion that the rings are bad. Again, just looking for some opinions before I go and rebuild the motor. Thanks guys

BTW, assuming the rings are bad, I'm going to get:

07 rods
new stock pistons (w/ rings)
new wastegate spring (8.7 or 10.15 psi maybe?)
blockgaurd
3 cases of goose island 312

Anything else that I should probably get that I'm missing?

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problems at startup

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Re: problems at startup

keit29 wrote:

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Re: problems at startup

keit29 wrote:

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Re: problems at startup