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help. bogging, raw fuel, headers...

Mitchstrp

Mitchstrp

New member
so i had a friend who works at a tech school take a spin at installing my headers, he did it for free and i didnt think there was much he could mess up.
WRONG! After i get the car back i start it and it starts up rough, i was like ****, then i get a ses light saying tps sensor and i pop the hood and find a vacuum leak, fixed so now im thinking okay everythings okay, so i run it down to the local exhaust shop about 4-5 miles away on open headers because he doesnt have access to a welder and when the owner puts it on the lift and goes wtf! you have gasoline on the down pipe and your mid pipe, so im like **** okay, weld them together and see if anything gets better. no. So im thinking okay ill drive it for a mile or two and see if it gets better or worse, gets worse, i bring it home and pull it into the garage and pop the hood. All i can smell is raw gas and my cross over pipe has an exhaust leak and is literally shooting gas out of it. the raw fuel is coming out of my tail pipe as well, its as if my injectors arent pulsating but just continusly running. I decided to drive it over to the shop and park it for the time being, my mechanic was there took a look said maybe maf but cant tell at the moment, but on the way over there my car completely bogged down and shut down and started back up roughly.


Mods: SD headers, 3.5 pulley, 3800 performance pcm, poly mount dog bone bushings, cai, no cat, and i think thats it.

Also, i have new plugs new wires and new coil packs not even put in a month ago and its been fine up until now.

Any advice would be great, i may be done with the 3800 world if its to expensive of a fix.
 


i still consider myself a noob.. but seems like it would be o2 related. specifically the front sensor.
 


if maf was good before.. i dont see why it would go bad after header install... positive he wired teh extension correctly?
 
he didnt wire, he just plugged it in. its a zzp extension, you would think that if it wasnt working it would send an o2 sensor code
 


I think u may wanna see if he got the o2 sensors backwards not sure if it would do much but seems like it's worth checking out
 
screw the zzp extension... get some wire the same gauge as o2 wire harness.. splice it into the o2 harness wire.. not the actual o2 wire and see how that works.. thats what i did on mine.
 


basically just extend the the o2 plug. cut the plug off that plugs into the o2... and extend it with a wire thats the same gauge. feel me?
 
Even if it had no O2 sensors hooked up it should run in open loop just like when the car is started in the morning. Almost like he neglected to hook a plug wire or two back up so it's just spitting raw fuel threw it. I'd take the easy route and check to make sure the plug wires are hooked up correctly first.
 
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