I am only getting 11 miles to the gallon when I was getting 20 before...Any Ideas on what the hell could be causing this?

Thanks-
MoDice7

 

So much for using the search function... Anyway, here goes! Replace plugs/wires/o2 sensor/fuel filter/change all fluids (coolant/oil)/verify that your 5th & 6th ports are working properly and not stuck. That'd be the place to start!

 

check for fuel leaks just in case ...

Although it could be just a tuning issue, I would check for leaks asap since this could be potentially dangerous.

Pressurize your fuel system by jumping the yellow connector on passenger side of engine, and put key to on position.

check for leaks especially in the pulsation damper area (failure prone) and along stainless steel fuel lines that run from gas tank to engine bay (rotting prone especially in snow areas)

Hugues -

 

Yeah, i'm having the same problems, 11-13 mpg city. The odd thing is the 5th gear fuel conserve mode is still working, so i'm still getting 20+ mpg highway.

I have an appointment at KDR next month so hopefully Dave can figure it out.

 

anyone know the conversion from mpg to kms/ liter?

 

tuneup & injector cleaning time