99 Mustang Skips and hesitates at idle and when driving. please help
#1
99 Mustang Skips and hesitates at idle and when driving. please help
My car is skipping and hesitating while driving and accelerating and just at idle. I have changed my coil pack, the egr valve, the fuel filter. And to top it all, it is throwing only one code, P0455 (Large Evap leak). No misfire codes, no sensor codes, nothing. Any ideas on the cause of this?
#4
The evap is connected to vacuum.
That's your charcoal canister, hooked up to the fuel tank vent. The vacuum draws gas fumes to the canister so they are absorbed and then sucked into the engine rather than just venting the fumes out to the world.
That's your charcoal canister, hooked up to the fuel tank vent. The vacuum draws gas fumes to the canister so they are absorbed and then sucked into the engine rather than just venting the fumes out to the world.
#7
Possibly, depends on how important the evap leak detected is to the car operating.
My wife's corvette had a large evap leak code for the fuel vapor purge valve stuck open and it didn't affect the perf at all, just triggered the CEL.
My wife's corvette had a large evap leak code for the fuel vapor purge valve stuck open and it didn't affect the perf at all, just triggered the CEL.
#9
I have found the problem. Its my spark plug wires. at night the wire has a spider web of arcs to the block. At least 2 of the 6 wires are doing it; possibly 3. On the coil pack side, the wire is sold white from the energy leaking out. I wont know for sure for about 2 weeks. I will post the results then.