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whipple you almost answered your own question. why are most things changed on engines- emissions-. engineers figured that if they can get that throttle plate to open a little later or close a little sooner or softer they can clean up the emissions. it dose work to that advantage ill say, but it seems more problematic too. I can’t keep track of all the throttle bodies we have replaced in our shop. On the bigger GM engines we have to change the throttle body sensors to a updated part and re-flash the computer to change diagnostics on the throttle body code they set. When the throttle bodies fail there usually not covered by the powertrain warranty. that is usually not a good conversation when the customer realizes they have to pay $300.00 + for a new one. drive by wire is good but it needs to evolve a long way before its great.
whipple you almost answered your own question. why are most things changed on engines- emissions-. engineers figured that if they can get that throttle plate to open a little later or close a little sooner or softer they can clean up the emissions. it dose work to that advantage ill say, but it seems more problematic too. I can’t keep track of all the throttle bodies we have replaced in our shop. On the bigger GM engines we have to change the throttle body sensors to a updated part and re-flash the computer to change diagnostics on the throttle body code they set. When the throttle bodies fail there usually not covered by the powertrain warranty. that is usually not a good conversation when the customer realizes they have to pay $300.00 + for a new one. drive by wire is good but it needs to evolve a long way before its great.
Give it time. probably has to relearn the idle. if it is really bad or doesn’t clear up id take it to a shop for diagnosis.
Give it time. probably has to relearn the idle. if it is really bad or doesn’t clear up id take it to a shop for diagnosis.
I think you have a rich condition. check that upstream o2 and make sure it is toggling (switching from lean to rich). it should be around .02v to almost 1 volt moving very fast. try introducing a lean condition, like pulling off the brake booster hose. the o2 should go lean or around .02volts. if the o2 fails the above tests i would look into replacing it.
I think you have a rich condition. check that upstream o2 and make sure it is toggling (switching from lean to rich). it should be around .02v to almost 1 volt moving very fast. try introducing a lean condition, like pulling off the brake booster hose. the o2 should go lean or around .02volts. if the o2 fails the above tests i would look into replacing it.
ya sounds like something got bent when the timing belt broke. i think that its a better plan of attack to go for the top of the engine as pistons are much stronger than valves. keep us informed
ya sounds like something got bent when the timing belt broke. i think that its a better plan of attack to go for the top of the engine as pistons are much stronger than valves. keep us informed
college man is right. The aftermarket cat has to much flow. This code has nothing to do with the position 1 o2. GM vehicles don’t like aftermarket cats. i would see if you have a warranty on that exhaust and get it changed but beware that the code will probably pop up again in the future.
college man is right. The aftermarket cat has to much flow. This code has nothing to do with the position 1 o2. GM vehicles don’t like aftermarket cats. i would see if you have a warranty on that exhaust and get it changed but beware that the code will probably pop up again in the future.
ya I think its an in tank float problem too. I would not go cheep tho. I would only stick with GM fuel pumps. I’ve seen a lot of problems with aftermarket fuel pumps i.e. hard starting. Sometimes you can just get the float and that might be a more cost effective method for you.
ya I think its an in tank float problem too. I would not go cheep tho. I would only stick with GM fuel pumps. I’ve seen a lot of problems with aftermarket fuel pumps i.e. hard starting. Sometimes you can just get the float and that might be a more cost effective method for you.