Running Pig Rich Help!!!!

[Sernadaburna]

yesterday i fixed a huge hole i hade in my lower IC pipe. i also installed vibrant silicone couplings on all the piping,joints,elbows because the other couplings were ebay cheap ones. i then installed all new gaskets and a new megan o2 housing. after finishing everything i turned the car on and took it for a spin and it was running fine when i wouldn't floor the car. but when i hit the gas it picks up in first to second gear really beauifully but when i shift 2 third it doesnt wanna pick up cause the engine is being flooded with gas. i need help cause this is crazy i fix problems and then i get another. I have a leaking hoses for my radiator fluid but i am fixing that today and i doubt thats the problem also i am going to check the couplings again 2 see if there loose other then that im clueless. please help thanks also i have a aem wideband, 550 injectors and walbro 255 fuel pump. the aem wideband reads stouch when i am driving casually but when i floor it, it goes straight to 10.1 rich

 

[talon187]

yeah thats super rich do you have a fpr ? what are you using to tune safc2? somthing even if you had a eprom chip you would still need somthing to fine tune. if you dont have anything to tune with stop drving the car or get somthing to tune with. or put the stock injectors back in for now

 

[No_Skillz]

Boost leak test? BOV Recirculated? AFPR? Tuning software/hardware?

 

[someguyonline]

you really need something to dial in the a/f's, also how much boost are you running??

 

[1992awdlaser]

One problem with your setup is not having an adjustable fuel pressure regulator. From the facory these cars target air/fuel ratios in the 9.5:1 range during full throttle conditions. Not having an adjustable regualtor with the 255 is going to make it run even richer. Have you tried to take fuel out with the afc?

 

[steve]

And since the AEM uego won't read anything richer than 10:1 you can't even tell if it's running what the factory programming set or worse.

Keep in mind that AFPR overrun usually doesn't impact WOT since the engine at that point is consuming enough fuel to avoid overrunning the regulator.

 

[Sernadaburna]

I tried 2 lean it out a little bit yesterday and I tighten a coupling that connected the lower IC piping to the frontmount and it runs a lot better but I think I need 2 get the car fine tuned. I have 2 also pick up a afpr soon. The problem I am having now is that when I first start the car in the morning the car idiles 2 about 650-700 and the vaccum drops between 13-14psi n then when the car finally warms up the vaccum stays constent at 17vaccum and its smooth. I'm running 15psi boost with a aem boost controller but I think the wastegate spring might be going cause it won't go any higher even if I turn it up 2 30psi it will stay at 15psi. either its bad or the spring is rated for 15psi. Also my boost doesn't stay at 15psi at full throttle once it hits 15psi it drops 2 about 12-13psi and stays until I shift I might have a boost leak somewhere. I have 2 make a tester this week and try 2 find it

 

[EvansF]

Buy an AFPR... also i saw that you replaced your o2 housing, did you replaced o2 sensor too? maybe hes old or you just hitted him while replacing the housing.
This sensor is kinda important for ## air/fuel ratio

Evans

 

[Sernadaburna]

i have a bov recirculator, i have an eprom ecu but i am not sure if it is chipped. also i was very careful when i removed the o2 sensor. i dont think that would cause me to run lean on start up and ideal low and then when its warm it ideals fine and when i am at wot my car runs pig rich i am confused. i am going to tune the car this wednesday hopefully thats the problem cause i dont have any boost leaks.