cant figure out why my 2g wont pick up rpm's, wont boost

[allidtaken]

about me: 6bolt short block, stock 2g head, injen intake, type s bov, aftermarket boost gauge, only the necessary vacuum lines, no ac, no power steering(both by choice), road race engineering cas harness, car is a 95 fwd talon tsi .... (car has not been timed with light yet) when i push on the gas it takes about 4 or 5 seconds for it to get to 6grand from 1 grand, and the bov wont go off, also the ic pipe from the throttle body smashes(not all of the way), pretty sure i dont have a boost leak. also when i turn the lights on the rpms go to 0, until i hit the gas, and the gauge says i have 3/4 of a tank of gas but the gas light is on, my check engine light doesnt come on, narrow band says im lean while on the throttle but when i let off it jumps up to somewhat of a normal reading, until the rpms go down then it goes back to lean.?????? hope this is enough info, thanks for any help, Rick

 

[Nito15]

Very weird symptoms. Check your battery terminals make sure they arent corroded and have a good clean contact. That is what I have at the top of my head since that is what usually causes the weirdest things ever. It is easiest to check also so do that first. Second culprit would look into the ECU you are running. Invert the plug wires accordingly depending on the ECU you are running. If its your first time running a 6 bolt, I know you have to switch some cable pins on the ecu for certain 95/96 models according to RRE when you run their CAS 1g to 2g conversion cable. RRE Instructions
check the version 2 link to see what i mean. Thats all i can think of. Anything else i would suspect some kind of short in the harness or a bad ECU. Test those things out first though. Hope my input helps.

 

[allidtaken]

the cas harness is not homemade, so those instructions confuse me ( RRE instructions, i have read them before, but they are for when you make your own harness.)

 

[allidtaken]

i got the rpm problem fixed, plug wires with that harness are outside wires on the same coil pack. i am still not getting any boost tho, i dont have the stock boost controller hooked up and i do NOT have an aftermarket mbc, would not having that hooked up make a difference on me getting boost or not?

 

[allidtaken]

i have been trying things still cant get it to boost, it has boosted twice, instantly when it hits 7 lbs it goes back to zero. this makes me think that theres not a boost leak, and i messed with the wastegate, thats all in working order.... thats where i am at right now

 

[boostedjay32]

"i dont have the stock boost controller hooked up and i do NOT have an aftermarket mbc,"

what are you using then?


you need something to control boost...

unless im missing something here..

 

[allidtaken]

well if the stock wastegate opens at 7lbs anyways than pretty sure i can just bypass the boost controller. which is why you get a mbc to adjust when the wastegate actually opens up.

 

[allidtaken]

this isnt in stone yet.... the turbo has some serious shaft play and it looks like the
exducer(?) blades are rolled. so i am going to try to do away with the t25 (this is the second one thats been shi*), and try to find a 14b and see if that fixes it. if that ends up being the problem i will re-post, my funds are not so great now so it may be next month before i find anything out. Thanks, if you have any input feel free to fill me in!

 

[dsmtun3r98gst]

well if you are talking about that side of the turbo that connects to the short ram intake that would make it the induser. unless u took it apart from the O2 housing n look at it from the other side. i had the same problem a few years ago with my t25. for sum reason after changing my exhaust manifold gasket and puttin evrything back together my car wouldnt hit boost n we couldnt figure out what it was until we took off the intake pipe n tried to turn the impeller. the thing was completely stuck. it was so stuck that we had to jam a screw driver to get it turning again . after that it worked just fine....

 

[allidtaken]

there are two sets of blades on the cold side, inducer and exducer, my exducer blades are rolled over.

 

[dsmtun3r98gst]

there are two sets of blades on the cold side, inducer and exducer, my exducer blades are rolled over.

huh???? as far as i know no matter how many sets of blades you have on the inlet side of the turbo they are still considered to be an inducer. unless your talking bout the part that is in the turbo housing which is near impossible to see unless you pop the turbo open. correct me if im wrong but that would still be considered to be the inducer. ....... just trying to clear things up........

 

[allidtaken]

my buddy that looked at it works at heffners performance, he said its called the exducer, i looked it up after your last post and it was called the exducer, its the set of blades directly behind the inducer blades.

TurboByGarrett.com - Turbo Tech102

this says that there are two exducers so i guess were both right

 

[rEclipserGST]

You said the hose compresses and you "think" you do not have a boost leak? If anything, it should bulk up. Those stock pipes should expand, not compress. Which makes me "think" you have a boost leak. Check your timing, that could affect your throttle response, your idle, and your AFR. Also, if the turbo is shot... it won't boost like it used to. You can find a t25 for like $50 in better shape probably. Or just upgrade to a 14b turbo for about $100. Next you said the bov wont make any sound? That is probably because you are not boosting. And lastly, you said you do not have the stock boost solenoid on there or a mbc? Do you have a boost gauge? If so, you should def have at least an mbc to constrol the psi.

Check Timing
Check Compression
Boost Leak Test
Check spark plugs and wires
Check turbo

 

[allidtaken]

i am aware of all of these things, and like i said the stock wastegate actuator opens around 7, so there is no need for a boost controller. If my exducer blades are rolled than they will not hold my boost, so the intake is trying to suck in air rather than have it shoved in, that would explain the pipe collapsing, as well as the bov not going off. if it were timing it would run like shit, which it doesnt, it runs really good, it just isnt getting the air it needs, thats why i posted another comment that said that i was going to try to find a 14b to put on there. my questions ended at that post, i just keep posting more so if someone down the road has the same problem they have a little more information when they try to search on it.