i bought a 1997 neon 2.0 dohc from a guy it was turbo already all i know is walboro 255 fuel pump,begi fuel pressure regulator, t3t4 turbo 3.5 inch exhaust from turbo back to 4 inch muffler.i also have a few more mods ... the problem im having is im turned my aem boost controller to 10 psi a soon as i goose it it runs great for like half a sec then my afr says lean as hell,2nd it does the same not as bad but really spits like first third spit alil but goes 4th and 5th im fine i have no way to tune it but by the boost controller and fuel pressure regulator and i turn the regulator up and it stops at 58 psi fuel pressure i have a fuel pressure gauge so im sure thats what it says does anyone know why im stuck at 58 psi fuel and why im spitting because for about a week now ive racked my brain i have plenty of ideas of what it could be but theres is to many things i could think of to check without going broke please someone help me!!turbo neon down.and yes i turned my boost down and romped on as well it still spitsjust figured id add that...

 

u need a better tune... and back off the boost a lil bit try like 5 pounds then go to 8 if u got all good fule like fule pump fule presser reg injectors u need a good tune....

 

make sure u dont got any boost leaks or ur cuplers are on good any lil air will make it run werid

 

A common problem with buying a project car. Checking the clamps is a good start. Using the proper T-clamps is a must on a boosted car. If plugs are good, a tune may be in order.

 

i did turn the boost down it still spit.tomorrow after the rain im gona check the piping for leaks thanks for yalls imputs appreciate it if any more ideas let me know

 

check all of thay then if shes still spitin work on getting a beter tune or try to run like 5 pounds or less but my guess im 90% is u need a beter tune somtime u can get away with out it like i got a dohc ecu CHIPPED 450cc injetors 255 walbro and fule pressure reg that it run fine just cant go over 9 pounds... but do wat GHOST NEON 2 told u and then try a tune for sure

 

yea i figured it out the car had a fuel booster pump and it was not wired fully but i got it wired right now doesnt spit at all...now it runs like a scalded dog thanks guys now i just need to adjust my clutch i got slipage..

 

my car on 7 pounds rips.. yea do a lil twekin and u will be all set