I told you that already!!! Bah!

Your fuel trims are not dialed in correctly!

I have 0 codes after my tune!!!

 

Well how bad is 21.5 average MPG on my car (stage 2, intake & exhaust) I drive it pretty hard also. I dont think its worth puttin the money out for a tune just to fix that is it?

 

Oh I am not overly worried about it.

I understand that the CPU is pulling fuel to run correctly.

Little engine light is just giving me a heads up.



That mileage is right if you whomp on your car all the time...like "Hi I am driving as fast as I can almost all the time" whomping

I knoe!


I am just tyring to get some info from someone who knows before he goes to ecotecforum permanently

 

Unless you are literally flooring it all the time.

You should be about 28MPG average 50/50 hwy/city. You are loosing 7 miles for every gallon. You are using 25% more fuel than you should be.

 

All in all it comes down to the $4 a gallon gas I don't want to be wasting. LOL. But I love my car so I can't drive it like a grandma.

 

It is your driving....you wouldn't dump that much fuel.

Also it is chilly out still...which gas mileage tends to go down...doesn't make sense to me though...

 

yeah cause stock I got 27MPG and then Stage 2 brought it to like 21

 

its ur fuel map...it has a nasty hole in it..thats why ur unloading in third..

 

With all this serious going on, you could confuse someone

 

shut up VINCE....u embarrass me

 

GM stage 2 tune is crap! At least thats what I have heard! I am running in open loop and have the same mileage! I have been on mine hard too! Before going to open loop I was averaging 28MPG all else being equal.

 

tEh ArE Iz fO rEzPeKt

 

do you guys think this could be caused by a bad primary o2 or an exhaust leak?

 

bumpity!

 

Yes and yes.

Methinks the leak would have to be right off the exhaust ports though

 

well hearing about he gas mileage thing I have been constantly getting 22.5 mpg since being stock. that was also on a 350 mile road trip. so anyone thinks gettign HP tuned would stop this? Sry to thread jack

 

damn, I think I have both of the above

 

I don't think you'd ruin an o2 sensor unless your LTFTs were like pulling or adding A TON of fuel

 

I had my ICM go bad a while back and I had to drive about 50 miles on a badly misfiring car so yeah...its possible.

 

El replaco

 

Just stick your finger in the exhaust tip and rub it around, pull it out and if its black the lean code means nothing.