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Unit 5302 · 10-09-2008, 04:41 AM

Tap on the MAF with the back of a screwdriver while the engine is running. A lot of times, you'll get a change in how it runs by doing that. If it's missing like that, I'm guessing it's not getting fuel one way or another. A single fuel injector would not cause a stall, and a TPS problem will generally present itself only a single throttle setting (idle, 1/4 throttle), but not across the board. The fuel pump would be suspect, but you say you've got good fuel pressure. The IAC won't impact revving performance, the O2 sensors drop out of the loop under WOT and when the engine is cold so you can rule them out. The EGR won't stall your engine with part throttle.

The ignition module is usually all or nothing, but I have seen them do what you're describing. I would wager ignition module or MAF.

10-09-2008, 04:41 AM	#5
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	Re: Car dies, I'm out of ideas. Tap on the MAF with the back of a screwdriver while the engine is running. A lot of times, you'll get a change in how it runs by doing that. If it's missing like that, I'm guessing it's not getting fuel one way or another. A single fuel injector would not cause a stall, and a TPS problem will generally present itself only a single throttle setting (idle, 1/4 throttle), but not across the board. The fuel pump would be suspect, but you say you've got good fuel pressure. The IAC won't impact revving performance, the O2 sensors drop out of the loop under WOT and when the engine is cold so you can rule them out. The EGR won't stall your engine with part throttle. The ignition module is usually all or nothing, but I have seen them do what you're describing. I would wager ignition module or MAF.