Engine light came on again , this is becoming a nightmare...

 

George it could be... Get someone to help w/ TB... Or your gonna have to swing through CT and meet up w/ me!
Did you get the OEM plugs back in? Or did they just replace it w/ another brand spark plug...?

 

if you get the manual there are PAGES of misfire info,causes ,a long list

 

What are the OEM brand??

 

It's. Its code 171 now what is that o2 sensor?

 

AC Delco 41-103 for the 3.7L.

 

P0171 = System too lean.

Since you mentioned a while back about cleaning the K&N filter, this fits:

1) The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.

2)There could be a vacuum leak downstream of the MAF sensor.

What to do:

In the vast majority of cases, simply cleaning the MAF sensor does the trick. Disconnect the electrical plug, remover the MAF (DO NOT TOUCH anything but the exposed electrical connector end) and spray it with MAF cleaner. Make sure you are careful not to damage the MAF sensor, and re-install it, snap the connector plug back in place.

Invest in a can of the correct stuff ($7.00) and clean it at every air filter cleaning. Spray your family and friends MAFs while you are at it.


Inspect all vacuum and PCV hoses, replace if necessary. Check that the clamps for the air intake at the throttle body are snug and in proper position. Make sure the air filter box lid is on properly and the filter is in place.

 

Let me guess............ where's the MAF?



It is in the air filter box outlet and has 5 wires plugged into it, two torx screws holding it in place.

 

Already did use that product a few weeks ago. However I did clean the air filter two weeks ago with the kit and maybe like u said the oil caused that. So it might be a totally different issue that the spark plugs