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When all else fails, what do you do? I can tell you what I do. I start over. I changed the plug wires again. It runs perfect now. I guess is has had one hell of a tune up.

Summary: 2000 Explorer 5.0 79k Vehicle was sitting for a year. We drove it 3 months ago and it was fine. I started driving it again. It is missing and backfiring. I got a CEL. I had it read and it was a misfire on 4. I changed the plugs and plug wires. Then I got a CEL for EGR flow. I...

That looks like the same one that was used for my 2000 V8

anymore ideas Well I got the fuel pressure regulator in. Before I changed it, I bought a fuel pressure gauge. My gauge was around 60 to 65 psi. ( I guess the gauge the mech had was off). Just to test, I pulled the vacuum off the FPR to test and there was no change in the pressure. So this part...

More Stuff I went and hade the computer diag on the truck. Everything looked great. All sensors looked fine. We did check the fuel pressure and it was at 80 PSI. So my next step is to change the fuel pressure regulator then fuel pump. Of course after I leave the mech's house the truck gives a...

Arggggg So that is what that D@mn thing is........That made installing the EGR a pain in the as$. I could not see where the bolt was holding the bracket on for it but it is right in the way. I could not find a combination of tools that made getting those long as$ bolt out and in for the EGR.

Evr Actually I have no idea what the EVR looks like. For testing, all I did was make sure there was no vacuum being applied to the EGR at idle. Anyhow, I still did not have any codes today. I guess I will find out tomorrow.

update exploded99, Thanks for the help! Today I drove it for quite a while. The missing and backfiring is still there. However, there are no codes. Well at least the EGR problem is gone (I also verified the solenoid is working correct). I also changed the fuel filter. No change. When I filled...

A little more info This car has not been driven in 3 months. At that time it was only driven about 10 miles or so. At that time it ran great, no engine lights (maybe because the battery was pulled and the code was cleared). Well I got to thinking. The code that I was getting yesterday was P0401...

I am going to try and give as much information as possible. I have a 2000 exploler xlt with the 5.0L. The car has not been driven in 3 months. I started to drive it again. Charge the battery and she cranks just fine. I notice the car seems to be missing. I look and it is low on fuel. Not low...