1993 GMC Sierra K1500 "truck map sensor" Questions

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Question about GMC K1500

1 Answer

...map sensor reading is 10 in HG, i connected a vaccum guage and it reads 20 in HG, The computer is trying to add fuel the injector PW is 3.5 milliseconds. No high resistance in the wiring to the ...

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...truck witha 305 tbi, stalling alot,especialy when put in gear,replaced many sensors, ecm, etc. gives me a high voltage map sensors code. If you didn't replace the Throttle Position Sensor, check the ...

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Question about GMC K1500

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...Truck died, finally got it started now will not start unless primed and only runs if constant priming. good fuel pressure - actually seemed a bit high. could be map sensor or vacuum leak I had an ...

...truck runs pretty good when I first start ,but after it warms up in 10 minutes or so,it won't stay running when sitting at a red light.I replaced dist cap,rotor,plugs and egr valve.Still the same ...

Question about GMC K1500

1 Answer

...and runs fine after 15 secs.... changed egr ealve not solenoid thinking map sensor? help When you shut off the motor, see if fuel is dripping from the injectors. It sounds like one might be

Question about GMC K1500

1 Answer

...map sensor. Rebuild throttle body, pvc valve This is on a new engine that I had installed, when they put it in, they busted all the clips to the sensors and it may be in the wiring. Thanks for your ...

...truck only has 71K so I just couldn't imagine the distributor is that worn. the only codes I get are 32 and 43. I have replaced the MAP and EGR solenoid. it also has new cap, rotor and plugs. any ...

Question about GMC K1500

1 Answer

...map sensor should be on top of intake make sure is connected right and have full vacum if so just tap on it with engine running and will miss if it is faulty please let me know if this helped or need ...

Question about GMC K1500

1 Answer

...truck will die and sometimes in have to try 2-3 times before it will actually idole on it's own. Once it starts, the rpm's jump up and down for about a min or so. Any ideas what might cause this? map ...

...MAP sensor? New plugs, wires, cap, rotor, and distributor. Engine runs great before computer is plugged back in!!!   ok ran great before changes. right. you say unpluged computor to set timing.. ...

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