Car starts but idle in column 4 and 5 P75 (S300)

oscar93turbo · Post by **oscar93turbo** » Tue Jan 10, 2006 5:24 pm

Need help: My car starts but in the dattalog in idle the car is in column 4 and 5.
I read it should be in column 1 and 2.
What could it be the problem?

Post by **Spunkster** » Tue Jan 10, 2006 6:41 pm

The file is not there...

The reason for it idling in cols 4 and 5 is because of low vacuum. This could be becuase of a low compression engine, bad compression numbers, bad leakdown, or a vacuum leak.

oscar93turbo · Post by **oscar93turbo** » Tue Jan 10, 2006 6:59 pm

Its 9.0:1 compression enough for making the car idle at column4 and 5?

Post by **Spunkster** » Wed Jan 11, 2006 12:22 pm

No...Do you have Alpha-N enabled?

oscar93turbo · Post by **oscar93turbo** » Wed Jan 11, 2006 3:23 pm

Spunkster i'm using a stock map sensor. My car is forced induction.

oscar93turbo · Post by **oscar93turbo** » Wed Jan 11, 2006 3:29 pm

Spunkster my car compression was 180, 182, 185, 179. but still the vacuum is in 15

Djbower1 · Post by **Djbower1** » Wed Jan 11, 2006 4:16 pm

Get a new map sensor. yours sounds f**ked

x2gold · Post by **x2gold** » Sun Jul 09, 2006 5:41 pm

Djbower1 wrote:Get a new map sensor. yours sounds f**ked

sounds like boost leak/clamp etc, or vac hose to me. Could also be your map like mentioned above.

TurboLS · Post by **TurboLS** » Sat Jul 22, 2006 8:05 pm

check and clean your IACV and FITV (if applicable).

TurboLS · Post by **TurboLS** » Tue Jul 25, 2006 12:44 pm

I was just wondering if you resolved your issue with the vacuum problem. Let me know what your problem ended up being if you have figured it out.