|
|
03-28-2017
Ive been having an issue with the mpg on my 05 grand prix base. Ive done plugs, wires lucas upper cylinder cleaner, sea foam cleaner for fuel lines ect. Cleaned the maf new air filter. Tire pressure is good and ive been driving pretty light footed for the most part. Any ideas
03-28-2017
Any cel's? How bad is bad?
03-29-2017
No codes ..and like quarter tank in two days from back and forth from work ...where as before one tank would last pretty much 2 weeks and id drive on the weekend.
03-29-2017
You need to figure out what you are actually getting. That could be just a difference of how the fuel gauge reads or winter gas.
04-03-2017
Question ...should my short term fuel trim be + all the time 0 and up while my long term is always -...like -15all the way to 25- and never going above from what ive seen so far on my odb reader
04-03-2017
It depends. But, I would look at your ltft. If it's 15-25 at cruise, you have some mechanical problems.
04-03-2017
In the neg or pos?
04-03-2017
I just replaced my thermostat. A 195 and on the reader it only shows it to reach 85 maybe my therm sensor? Is this related?
04-03-2017
Either negative or positive that far out is bad.
Are you sure your reading in Fahrenheit and not Celsius?
04-03-2017
In celsius. And with the values like that what would cause that? Probs a few different things
04-03-2017
Temp wise on the dash it only gets to the 2 notch after the quarter mark
04-03-2017
85 Celsius is 185f. So you are not far off there.
You could have a fuel issue or a sensor issue.
04-03-2017
K well dont have a fuel pressure gage just yet...maybe look into the upstream 02 due to the negitive values or? Its just sucka because i have no codes and different possibilitys to check..just some ranging for low to high in cost
04-03-2017
An o2 would be a good guess, especially if it has 50k or more miles on it.
04-06-2017
Okay so before i start changing things out...my short term is pretty much staying positve and my long term is always negative like -15 to-25ish.....o2 or maf?
04-06-2017
How many miles are on the o2?
04-06-2017
Ive never changed in since we have had it around 07 08...yikes probs that? 170xxx on the od
04-06-2017
Put a new one in and just clean the maf.
04-11-2017
Hey so after picking the o2 sensor up whats the socket size do i use
| « Previous Thread | Next Thread » |
| Bookmarks |
Bookmarks |
