Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hi Im David, first thing to do is check for 12 vdc at pin 16 of the dlc connector. and ground at pins 4 and 5.
ok. let me have a few moment.......
lets take care of 151 first and replace the sensor. then we need to find out what cylinders are misfiring. does your scan tool read misfire data?
misfire counts on each cylinder.
ok. gimme a few
that pid isnt making sense. take it to autozone and have them scan it for free.
let me know
ok, well let me know. and happy thanksgiving. thats weird to say that here in the states in october.
any autoparts store.
not sure ...give them a call
its ok to have a little movement. but it should be rather secure.
are there any other parts stores around? you may need to by a cheap code reader
can you plug it into the dlc under the dash. key on.
do you still need assistance?
Ok. good. does the code reader read live data?
check engine light still?
maybe, but that why i need you to read the live data to see what the fuel trims are.
ok. are the b1s1 and b2s1 02 sensors fluctuating between around .1-.8? are the b1s2 and b2s2 o2 sensors pretty steady around .450-.650?
ill be beddy byes in about 20 minutes. its 11:15pm here, so i will look for the numbers in the am.
ok so both sensors are ok.
check the timing on that first. put it to tdc and pull the dizzy cap off and see where the rotor is pointing