[emsmap]

Hey everyone!

So I just rotated a Precision 5031 turbo on my 2002 wrx. I have my crankcase going into a catchcan breather, my pcv is going to another catchcan breather can. I am having starting issues now. I primed the turbo before startup so I made sure it was oiled well enough, then turned the key and the car is real choppy and will shut off if I dont constantly giving it throttle. I smell a very potent fuel smell after it starts up. I am really thinking this is MAF related. My MAF housing is 2.5 inches from a Injen CAI which is rigged up for now until I get one made at a shop. The fuel purge valve off the intake manifold is plumbed back into the intake and I am running a draw through intake setup still. I have been looking through all the intercooler piping to make sure there are no leaks and have been going through the whole motor for any loose connections with no luck. I do have 1000cc injectors which I ran on my vf39 setup brior to this one. I went in my UTEC to look over some readings and I am just stuck. I have checked all grounds and reconnected all the main sensors. Can anyone give me some info? Thanks so much!!

 

[emsmap]

anyone at all? I still can not figure this out

 

[bisonjr]

Is your maf pointed in the right direction?

What intake were you using on your vf setup?
Did you touch any mapping at all?

 

[Wideopen411]

Do you still have your bov connected right? Sounds like a hole in your charged pipe. And if you have any air getting in or out of the system after the MAF it will do that.
So ensure all the hoses are hooked up right. And all holes plugged.

 

[Gumby647]

Maybe post a couple of engine bay shots and someone may spot something. Sure sounds like an MAF problem or post. What are your fuel trims doing while this is happening?

It would be a good idea to pressurize the intake and check for leaks. It's pretty easy to make a tool for this from PVC, you just need a compressed air source.

 

[emsmap]

Sorry I havent updated any. I have been trying to figure this out. I am in the process of doing a blow through setup now since I cant get it to run right. I got it to drive but as soon as I go 10% throttle, it goes super rich and stalls. I cant seem to keep it driving. It idles perfect now

 

[Giza]

Pics of the setup would help too. If your blow through set up is backwards, you'll have these kind of issues. Bov leak or unregulated fuel purge will cause you to run rich too.

 

[emsmap]

everything is normal now. I went into my UTEC and messed with a few parameters and got it figured out. Thanks for the help


IMG_4759 by emsmap, on Flickr

 

[thegoldenfist]

Jesus thats a huge ass turbo!

 

[AWDkid]

You gonna be at the AWD meet again this year?

 

[emsmap]

Ill be there sir

 

[emsmap]

Just deleted my TGVs in my garage and capped all the emissions crap up on the manifold! Now I need to order some valve cover gaskets and spark plug grommets.

 

[Predatorwrx]

Hey everyone!

So I just rotated a Precision 5031 turbo on my 2002 wrx. I have my crankcase going into a catchcan breather, my pcv is going to another catchcan breather can. I am having starting issues now. I primed the turbo before startup so I made sure it was oiled well enough, then turned the key and the car is real choppy and will shut off if I dont constantly giving it throttle. I smell a very potent fuel smell after it starts up. I am really thinking this is MAF related. My MAF housing is 2.5 inches from a Injen CAI which is rigged up for now until I get one made at a shop. The fuel purge valve off the intake manifold is plumbed back into the intake and I am running a draw through intake setup still. I have been looking through all the intercooler piping to make sure there are no leaks and have been going through the whole motor for any loose connections with no luck. I do have 1000cc injectors which I ran on my vf39 setup brior to this one. I went in my UTEC to look over some readings and I am just stuck. I have checked all grounds and reconnected all the main sensors. Can anyone give me some info? Thanks so much!!

hello i have the same exact problem! What was the issue that car wont start? Thanks!