1999 Chevrolet Tahoe "changed fuel pump relay ecm" Questions

...changed fuel pump driver and still have same problem The fuel pump control module is controlled by the ECM - engine control module , Possibility of DTC'S stored ! You need to take to Chevy Dealer ! ...

...changed fuel pump, fuel pump relay and nothing helped. You don't say if you have checked anything else. It could be any number of issues. I would look into either the crank sensor or the ECM as ...

...start after running out of gas put gas in it changed ecm fuses relay fuel filter and battery sounds like fuel pump..have someone stand near tank and turn on switch and see if you hear pump

changed the battery, and the alternator and it still wont stay running. it cranks up and then cut right off. what else could be the problem? check fuel pump relay, also check oil pressure sending unit

...pump during closed loop operation. When the AIR is activated, the PCM monitors the HO2S voltages and short term fuel trim values for both banks of the engine. If the AIR system is operating properly, ...

fuel pump ran good for a day next day would not start Thanks for choosing FixYa and welcome. If you have a vehicle that will turn over and over but will not start, I will tell you some things that you

...fuel changed fuel pump So have you checked the fuel pressure with a gauge ? Check you fuel pump relay. located on IPDM marked as ECM relay in the picture. Just change places of ECM RELAY and FOG LAMP ...

...changed the fuel pump and a new battery but it still won't start like if gas is not passing thru?? Have you checked fuel pressure with a gauge ? Will it start if you use starting fluid to boost fuel ...

...fuel pump still dont work change fuel pompe still dont work 4x4 5.7 Check fuel pump relay. There are times a failed fuel pump may cause a blown ECM fuse. Usually ECM B or ECM / PCM 2 fuse will be ...

...fuel pump or relay changed - intermittent cutting out on car - can drive 30 / 5 / 15 miles before this occurs code p 0230 refers to fuel pump relay---circuit malfunction===causes --wiring---fuel pump ...