Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
OK< says i have oxygen sensor voltage bank 1, sensors 1 and 2 along with 2 heated ones. Since it is a straight six, what does the 2 banks mean on the two regular ones?
the short term fuel trim on bank 3 does swing quite a bit -83% to 82%, but bank1 stays
-1.6 to -5.5. Again two different banks. Which cylinders are they referring to? using elm327 interface
12.4 in hg at 824rpm
gas mileage still same. injectors firing for 3.2ms at idle and still negtive in trim. Is there way to test fpr operation on this one, or is that a common problem?