kuhnniks Posted March 20, 2012 Report Share Posted March 20, 2012 Hey everyone I havent actually introduced myself. I'm Nick an I live in south fl. I've had my starion for about 8 months and been doing alot of work. kinda been getting screwed by the guy doing it but its whatever. I would like to meet some people down here with the starquest so if anyone is in the area hit me up. I do need help however i have a sputter when im on it around 4900 rpm not quite sure whats going on. its a stock 12a i had a 16g but that had gone bad along with everything else in the car haha. But i want to rebuild my 16g an i need to know whats good psi on the stock 12a and whats a good psi on 16g. those are just a few questions thanks... Quote Link to comment Share on other sites More sharing options...
FRO Posted March 20, 2012 Report Share Posted March 20, 2012 Sounds like a fuel filter problem.. there are 7 filters / screens from the tank to the injectors. The FSM would be the best guide to finding all of them. Its a hassle to check them all, but well worth it. Quote Link to comment Share on other sites More sharing options...
joey_crandall Posted March 20, 2012 Report Share Posted March 20, 2012 get runnin tip top before you mod, how many miles are on it. got any pics. Quote Link to comment Share on other sites More sharing options...
kuhnniks Posted March 20, 2012 Author Report Share Posted March 20, 2012 thats the first thing is getting it perfect. Its got 70000 or so on the motor and every single seal an line has been changed an new stg 3 clutch all new well everthing lol. port an polish head 274 cam new racing vavles and alot more .... so not much left i hope. haha It was running 17psi on the 16g an now i am at like 12psi on stock turbo. just the sputter is my issue and dont know what it is thanks for the tip on the filters ill take a look soon. http://s1229.photobucket.com/profile/kuhnniks there is plenty of pics haha Quote Link to comment Share on other sites More sharing options...
AshyBone Posted March 20, 2012 Report Share Posted March 20, 2012 ...WOW... Your car is beautiful. No idea about the sputter though, does it sputter than go or does it sputter then almost hit a brick wall? Quote Link to comment Share on other sites More sharing options...
Technology Posted March 20, 2012 Report Share Posted March 20, 2012 There are only 5 fuel filters on a stock car. Not 7. One in the tank, the little cone in the inlet of the pump, the main large one in the engine bay, and a screen above each injector. Things that can cause a miss:1. Bad injector(s)2. Bad spark plug3. Weak coil4. Bad injector clips5. Cracked head6. Broken jet valve I made that bold because I had that problem once and I replaced plugs, wires, and the coil, tried a bunch of different stuff, and finally, I found that. I wasted a lot of money. An elimination kit is less than 15 bucks I think. Quote Link to comment Share on other sites More sharing options...
kuhnniks Posted March 20, 2012 Author Report Share Posted March 20, 2012 well it seems to do it mostly when cold an under boost above 4900 rpms.. almost like its misfiring... im running really rich also so its deft getting enough fuel i never lean out. I have the stock coil but not sure how good it still is. An someone had also said its my vacuum advance. I do have a small oil leack from the distributer. what do you think before i start taring things apart haha Quote Link to comment Share on other sites More sharing options...
TexasQuest Posted March 20, 2012 Report Share Posted March 20, 2012 Could be the vacuum advance on the distributor. Quote Link to comment Share on other sites More sharing options...
Mike_StarionTSI Posted March 20, 2012 Report Share Posted March 20, 2012 Woo! Another S.Floridian! Miami here (Hialeah/Refland to be specific). PM'd ya. Quote Link to comment Share on other sites More sharing options...
kuhnniks Posted March 20, 2012 Author Report Share Posted March 20, 2012 yessir, well Which should i change first hell i guess i should just do it all. Quote Link to comment Share on other sites More sharing options...
Threedoor Posted March 21, 2012 Report Share Posted March 21, 2012 Dude, your car looks killer! Get some polished aluminum center caps for those awesome wheels and you will be blinding people As far as your sputtering issue... do you have some way of tuning the fuel curve? If it was previously set up for 17 psi on a 16G and you are now running 12 psi on a 12a it could be running so rich that it causes it to sputter. Do you have a wide band O2 sensor and gauge? Keith Quote Link to comment Share on other sites More sharing options...
Technology Posted March 21, 2012 Report Share Posted March 21, 2012 You can check the engine internals with a compression tester, jet valves are easy to inspect. You take the valve cover off and you can see them next to the intake valves. remove the rocker assembly and test the action of the jet valves, if they are all smooth and all return to the top after you press them, they might be ok. You can inspect the valve itself if you unscrew them from the head. Easy, and free (at least for the jet valves). Quote Link to comment Share on other sites More sharing options...
slowbra01 Posted March 21, 2012 Report Share Posted March 21, 2012 Hey! Man that car looks so familiar! How are you doing! It's Joseph. I think we need to set up a S. Florida meet! Quote Link to comment Share on other sites More sharing options...
Mike_StarionTSI Posted March 21, 2012 Report Share Posted March 21, 2012 lol, hey joseph, I PMd him telling him just that. We seriously gotta all meet up. Quote Link to comment Share on other sites More sharing options...
kuhnniks Posted March 21, 2012 Author Report Share Posted March 21, 2012 Yea I sent you a text Joseph. Yea if you all aren't busy this weekend we should meet up. Shoot me a text. Quote Link to comment Share on other sites More sharing options...
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