2G fuel problems still whats next

[jbeaton9292]

Ok so when i bought my dsm it was having fuel problems (so i think) i dont have logging software but im not running over stock boost. The car has 560 injectors walbro 190 open air cleaner with maf adapter e3 16g spiking to 10psi holding 8psi sometimes it pulls good and other times it dont only reason i know as ive been trying differant things such as o/d off starting in low then secondand drive but its always differant. Do you think its maybe my ecu? Compression on car is good 160-170 across the board what does everyone think

 

[bryanwheat]

You have bigger injectors without a tune and you are asking what the problem is?

 

[92AWDHX40]

Man jess check out the ecu for any damage, have you tried the boost leak test yet, maybe I can help more next weekend.
mostly stock right?

 

[jbeaton9292]

It was doing it with stock as well its not running rich though[DOUBLEPOST=1408760992][/DOUBLEPOST]Or on a 2g does it not work like a 1g ive never messed with a 2g till this car because i know a 1g with 2g maf and 550s are fine and run great

 

[bryanwheat]

Do you have a wideband? Have you done a boost leak test yet?

 

[92AWDHX40]

Yes your right man, never owned 2gs only 1gs but ill be there Saturday.

 

[jbeaton9292]

Yes i have a wideband and havent done blt myself yet i know when i bought the car the guy did one but as i know alot can change in that time frame

 

[NY 95 TSI AWD]

It was doing it with stock as well its not running rich though[DOUBLEPOST=1408760992][/DOUBLEPOST]Or on a 2g does it not work like a 1g ive never messed with a 2g till this car because i know a 1g with 2g maf and 550s are fine and run great

No, It doesn't work like a 1g. On a 1g, the 2g mas (extra air) and 550 (extra fuel) injectors pretty much cancel each other out. With your 2g you added fuel (550's) without the extra air to compensate.

 

[oren hughbanks]

Do u mean e3 spark plugs? I would ditch those faster than I can say DSM. I would only run the OEM NGK plugs. Boost leak tests always help but I wouldn't expect much since there's no tune to at least try and dial those injectors in. The injector pulse is going to be way off cause your ecu still thinks it has the stock injectors. What are your AFRs doing on your wideband?

 

[jbeaton9292]

Do u mean e3 spark plugs? I would ditch those faster than I can say DSM. I would only run the OEM NGK plugs. Boost leak tests always help but I wouldn't expect much since there's no tune to at least try and dial those injectors in. The injector pulse is going to be way off cause your ecu still thinks it has the stock injectors. What are your AFRs doing on your wideband?

no im not talking about e3 plugs i said an e3 16g meaning an evo 3 16g[DOUBLEPOST=1408813548][/DOUBLEPOST]also i bought an safc today so im gonna tune it and see what happens i have a spare ecu as well so if it is that i have one i can try