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Showing results for tags '5.7 350TBI'.
Definitely stuck!! CODE 32 ob1 gm code the truck is idling really rough (sometimes sounds like it has bigger cams but it doesn’t), it stalls out with a quick snap open of acceleration, fuel mileage has down, loss power. I have a new 350 TBI CRATE engine coming I’m just trying to make sure I won’t have the code 32 issue with the new engine. had a code for an O2 sensor code so I replaced it and it hasn’t been an issue since ive replaced the EGR VALVE and the Solenoid, still was having the issue. So I replaced the MAP, TPS, and IAC valve, figured that would help. Still was having issues. I then replaced the spark plugs, fuel filter and ran a fuel injection service. That helped out a little bit but was still having the code 32 issue. I then replaced the coolant temp sensor on the intake manifold, Evap purge solenoid and vapor canister. That seemed to help out with my fuel economy. I’ve checked for any signs of a vacuum leak using carb cleaner to try and find the leak. I sprayed all the vacuum lines, intake manifold and throttle body and couldn’t find any source of leak. I’ve pushed on the diaphragm of the egr with the truck idling and it definitely changed idle states so I know the passages are clear. I checked the egr solenoid for correct power and measured 12v. WHERE DO I GO FROM HERE?
I have a 92 GMC Sierra 1500 with the 5.7 350TBI currently bolted up to the 700r4 transmission. I need a new engine & I found one it's also 5.7 350TBI bolted up to a 4L60e transmission out of a 95 Chevrolet Silverado extended cab . Will the 350 out of the 95 work in my 92 ? Or will I have to change ECM. Wires ECT since one is cable & one is computer . Please Help .