so I jumped the fuel pump this morning...I could hear the pump but I had to crawl under the truck to hear it...should I have been able to hear it by just standing next to the truck? It started by having a whine that I could hear from kneeling next to my rock slider...but then it went away in about 2 seconds and got REAL quiet. I left the jumper on and the truck still had the same problem that I have without it...took 5 starts to finally get it to run this time (a little more than usual, but it ran fine after I started it numerous time...like it was doing before I jumped the fuel pump)...anybody know how I can put a video with a sound clip on the forum?
If you could hear the pump running and still have the same problem, that eliminates the fuel pump portion of the AFM but doesn't eliminate the rest of the possible AFM problems that can be checked at the AFM with a volt/ohm meter.
It sounds like you should check you fuel pressure. Too bad you don't have a Toyota field service manual. The FSM will take you step by step on how to test everything. For testing the fuel pressure I was lucky enough to get a spare Cold Start fuel fitting and attached it with the fuel pressure gauge to the Cold Start location. You could have a bad pump or bad filter. It is hard to tell without checking your pressure.
