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Brand new maf, no vacuume leaks that I can find, and I have a new fuel pump and new regulator and I have about 50 psi to my shrader valve, working electric fan and aluminum radiator

I have a 93 5.0 and sometime the car will idol just fine then then it will randomly idol at 2000-2200 rpm and then I have the matter of seconds to pull over before it over heats. When it does this it sounds like the car will almost be miss fireing and my fuel pump primes non stop

Note to self Never buy a motor swapped street car

Ok thanks again for the help guys, I'll do it when I get home, and I noticed when I replaced my fuel pump relay and harness and I noticed that there was one yellow wire that wasn't in use that came off of the plug, I ordered it from late model restoration and the old plug didn't have a pin in...

I have a cold air that goes to the fender well

Yes it will keep going even after 2-5 seconds it won't stop

*matching maf

Ok cool. And yea if I did get them I was going to get the matching cam. And what's a easy way to make the fuel pump stop priming non stop? I don't want to burn up my brand new pump

I'll probably change that too thanks for the advice, but now I still have that fuel rail noise and my fuel pump still primers non stop, the car runs perfect should I be worried about the pump and rail? I'd still like to fix these before I drive the car everyday. And if I'm getting a new maf...

I unplugged the maf and it was running near perfect so I suppose the maf is the problem

It stays the same after it warms up, and it does have some fuel rail noise on the passenger side fuel rail. I've been looking non stop and haven't found any vacume leaks

At idol I have around 46 pounds of fuel pressure and as I rev it it goes up even more

I changed the fuel pump relay and it did nothing, I have yet to check the voltage which I will do next and I checked the inertia switch and it wasn't tripped and it read 10 and change on both sides

I used carb cleaner and didn't notice any idol changes while spraying around the injectors, egr, intake gaskets, or the soft vacume lines, could maybe a clogged fuel filter do this? I changed the pump but not the filter. Or maybe a fuel pressure ragator? I have a video of the car doing what it's...

Should I use the carb cleaner method

Dumped the codes and they are as follow 81 82 85 87 84

Thanks you for the posts, I will do the test tomorrow and let you know

That's my next task, I completely over looked it and hopefully that's the problem, what points could they be leaking from? Egr and fuel pressure ragulator? Is there any more

Timing chain and timing is good, I had the timing set to 14 degrees and I turned it down to 10 to see if it would fix it, my inertia switch is reading 10v all around and my injectors are reading 11 and change, I pulled all of the plugs and I have great spark all around but they have small...

I forgot to add that I have fuel rail noise coming from the passenger side fuel rail and almost 48 pounds of fuel pressure is what my sharader valve gauge is reading