HELP ME PLEASE!!!

[nismo_chk]

ok... yesterday i put on my manual boost controller and i was out testing it with someone and at about half throttle it hit 16 psi so we stopped and he adjusted it down and another run down the street and getting on it SLIGHTLY it hit 19 psi, so we turned around and i was just going to head back to my house and adjust it again and once again i BARELY got on it and hit 19 psi and i heard something come off the car and bounce off the ground and then the car died. we couldnt find anything on the side of the road, we looked forever too. The car runs like hell, wont really go anywhere and is definetly getting fuel, my dad had to come tow me home about 1/8 mile. We searched for any boost leaks and i checked all the IC piping this morning pretty well and nothing is detached that we could find. My friend says the turbo sounds fine but if there is no leaks, what else would it be? If only i could find whatever fell off the car, that could prolly solve this whole situation, but we cant find anything so thats outta the question. WHat do you guys think?? Any suggestions would be great.. thanks alot-Britt

[zero_gripS13]

im so sorry to hear about this, i hope u find out whats wrong, and its nothing major.

yea if u could find the part that fell off it could help..

good luck

[iliketocrash]

well what vacuum is your boost gauge reading? have you check to see if your ECU is throwing any codes?

[onevia1800cc]

don't quote me but if heard that the stock ca t25 turbine wheel will come off spun that fast?????wouldn't hurt to check

[boost_boy]

ok... yesterday i put on my manual boost controller and i was out testing it with someone and at about half throttle it hit 16 psi so we stopped and he adjusted it down and another run down the street and getting on it SLIGHTLY it hit 19 psi, so we turned around and i was just going to head back to my house and adjust it again and once again i BARELY got on it and hit 19 psi and i heard something come off the car and bounce off the ground and then the car died. we couldnt find anything on the side of the road, we looked forever too. The car runs like hell, wont really go anywhere and is definetly getting fuel, my dad had to come tow me home about 1/8 mile. We searched for any boost leaks and i checked all the IC piping this morning pretty well and nothing is detached that we could find. My friend says the turbo sounds fine but if there is no leaks, what else would it be? If only i could find whatever fell off the car, that could prolly solve this whole situation, but we cant find anything so thats outta the question. WHat do you guys think?? Any suggestions would be great.. thanks alot-Britt

Hi Britt, I'm sorry we had to meet under these circumstances, but we can try and help as best as possible. I can't tell what came off your car, but I can say when I hear something fall and bounce underneath my car, it usually a wrench or a ratchet and now I am @$$ed-out of more tools . But seriously, there isn't much that can really fall off except an ignitor or an AFM. I suggest you guys do a compression test to determine if anything internally got hurt. A compression test will definitely tell you if you've melted a piston and/or cracked a ring land. If you heard something hit hard from down low or around the engine area, you may have grenaded it. Overboosting is a no-no and usally results in a loud bang and some smoke and then the car runs like crapola.

Dee

[nismo_chk]

Hi Britt, I'm sorry we had to meet under these circumstances, but we can try and help as best as possible. I can't tell what came off your car, but I can say when I hear something fall and bounce underneath my car, it usually a wrench or a ratchet and now I am @$$ed-out of more tools . But seriously, there isn't much that can really fall off except an ignitor or an AFM. I suggest you guys do a compression test to determine if anything internally got hurt. A compression test will definitely tell you if you've melted a piston and/or cracked a ring land. If you heard something hit hard from down low or around the engine area, you may have grenaded it. Overboosting is a no-no and usally results in a loud bang and some smoke and then the car runs like crapola.

Dee

well.. whatever it was sounded kinda plasticy and couldnt have weighed much by the sound of it bouncy off the road... and it didnt sound low, but i have no idea where it came from.. the first thing we both thought of was that the boos controller blew off b/c we hadnt mounted it yet so it was just laying on top, and the noise sounded like the knob hitting the ground. where can i have a compression test?

Quote »don't quote me but if heard that the stock ca t25 turbine wheel will come off spun that fast?????wouldn't hurt to check[/quote]well.. it was a stock sr20 t25 but i have no idea about that kinda ****.. hmm.. sounds like an idea that no one else has mentioned yet.. but would that make the car not run?? even with a blown turbo the car still runs. just is terribly slow and doesnt idle great..

[slideways]

i read your post on zilvia. 16-29 psi on sr turbo? thats a NO NO i wouldnt be supprised if thigns arent worse than just the turbo.

[DjLiquid]

16 - 19 PSI on a t25? Whaaaaaa?????

Why?

[nismo_chk]

well i didnt WANT to boost that much.. we were still adjusting the boost controller and thats what my boost gauge read... from what i know tho.. a turbo wont boost more than its capable of, right? so in that case.. the gauge was prolly spiking anyway.. but i know.. we turned it down and it was still way too high and i was barely getting on it.. i hope its nothing internal, but who knows

[iliketocrash]

i guess its possible that the turbine could have spun off. my friend has an old catalytic converter off his dsm from when he first bought it and there are 3, count 'em, 3 t25 turbine wheels lodged in his cat.

[DjLiquid]

I know that the best range for the t25 is about 10 - 11 psi's and anything over that wouldn't give you any extra power but Im pretty sure that you can set your boost to high and with the lack of gas in the engine you can damage stuff severly. Like Boost Boy said, do a compression test

[boost_boy]

If you need help with performing a compression test, someone in the forum will be more than glad to assist you. If your car shut down hard after overboosting, it doesn't sound promising. But then again, we don't know the full extent of what went on. Did you guys find some oil on top of your valve covers or around the engine bay? Tell us yeah and I can guarantee you hurt a piston or two. The fuel system is barely adequate enough for 13 psi let alone 15 and anything above that.

Dee

[jt15833]

question about the mbc, is it home made or from a manufacture? also did you start with it fully open??

[slownslurious]

my vote goes for a tool falling too, thats usually what it is. And **** man turn that **** down, you can do short bursts like that without breaking stuff... I have no idea what to tell you, check the ECU for codes and go from there.

[nismo_chk]

question about the mbc, is it home made or from a manufacture? also did you start with it fully open??

its a hallman (sp) and we started with it somewhat open, and were working our way down (bad idea now, but we didnt think it would start us out at like 300 psi) lol

i dont think it was a tool, b/c we only had a couple tools out there and i remember taking them all off the car first before we shut the hood.. we only had waht i remmeber putting back away.. ERRRR i wish that it was a tool.. but i dunno.. seems to me the problem is much worse.. more and more people keep telling me i prolly fried a piston or 2, or something definetly internal.. which really blows b/c i have no money at all, and i jsut got this turbo on my car about 3-4 weeks ago and before that the car sat for 2 months b/c i couldnt afford a turbo.. ERRR MFer

[TheLocust]

Damn Brittany sorry to hear this.... I have a compression tester and will help you do it or do it for you fi you want. If not you can buy one for like 18 bucks from autozone and the directions are on the box. Who is this "friend" you have doing all this? Pull your intake off and look down into the turbo to see if everything checks out. If you see a bunch of oil....thats bad. How does the car idle? And what happens when you try and rev it up? When my old SR threw a rod it was spiking everyonce in awhile and I never did find out "why" it did it. Of course I had a huge hole in my block but mine is aluminum, yours is iron so if your weren't really going that fast it "might" not have. Ah I dunno.. But this really sucks I was just riding in this thing like last week (This is Chad by the way if you haven't figured it out) And I know its too late, and im not trying to be a d!ck but PLEASE don't use MBC's anymore. I have three laying around my house but im still on stock boost because im too broke to get an AVC-R and I refuse to run a MBC. I've said it once and I'll say it again. MBC=The Devil. And sorry to hear the ****ty luck buddy.

[nismo_chk]

yea thatd be tight if u came over and helped me out with the compression test.. i would meet u somewhere but it obviously doesnt drive.. this friend is JC that drives that bimmer m3.. umm..i havent pulled off the intake yet, but i can definetly do that and check it out. the car idles fine now that i reset the MAF but when i tap the gas it dies unless u keep on the gas and if u slowly work it up to 4k it sputters and runs like hell. yea i was not even going like 40.. i was still in 2nd gear i believe.. i had just pulled out onto a street and got to second and got on it VERYYYYY slightly and hit 19psi and it just ran like hell and then died like 30 feet later... **** i dunno wahts going on with it.. IM me if u want to talk more about it..nismochk is the sn

[btustison]

i guess its possible that the turbine could have spun off. my friend has an old catalytic converter off his dsm from when he first bought it and there are 3, count 'em, 3 t25 turbine wheels lodged in his cat.

You mean chunks of turbine wheel right? I don't know how an intack turbine wheel could leave the housing in one piece... the tolerances are pretty tight in there.

[81na ZX]

yea thatd be tight if u came over and helped me out with the compression test.. i would meet u somewhere but it obviously doesnt drive.. this friend is JC that drives that bimmer m3.. umm..i havent pulled off the intake yet, but i can definetly do that and check it out. the car idles fine now that i reset the MAF but when i tap the gas it dies unless u keep on the gas and if u slowly work it up to 4k it sputters and runs like hell. yea i was not even going like 40.. i was still in 2nd gear i believe.. i had just pulled out onto a street and got to second and got on it VERYYYYY slightly and hit 19psi and it just ran like hell and then died like 30 feet later... **** i dunno wahts going on with it.. IM me if u want to talk more about it..nismochk is the sn

Sounds like a fuel issue of some kind.

What kind of pump do you have?When's the last time you changed fuel filters?What injectors do you have?Lastly Check the Fuel Pump/Ijnector relay.

A very similar thing happened to my DSM and it was a dying FP relay.A similar thing happened to my S-10, but worse, and it was a clogged fuel filter.

[iliketocrash]

You mean chunks of turbine wheel right? I don't know how an intack turbine wheel could leave the housing in one piece... the tolerances are pretty tight in there.

it sounds odd to me as well but i can take a digital photo of the wheels if you'd like. they're no longer in the cat because it was too large and just a mess to keep so we just pulled the wheels out. but i swear to you they were stuck in the cat. lol

[zero_gripS13]

this sounds firmiliar... i experienced something like this..sadly i had installed a mbc too and went for a test run. i ended up running 18psi on my probe and it made a loud pop and psshhhhhhhh then ran like **** then died as i luckily pulled into the gas station.. the car wouldnt start at all...my problem was i blew the intercooler piping opff the turbo lol..check urs u could have a big hole somewhere or blew the gaskets inbetween the elbows of the turbo or aomething. just my thoughts.

[r34 gtr]

hey, ive got a mbc and it works like a swiss watch. it NEVER spikes and always holds the boost right at what i set it at.

sorry to hear about your problem, if you need any parts feel free to ask. ive got tons around here (including a freshly rebuilt ca t25 with a scant 1000 miles on it).

- tim

[Not_a_sr]

most of the older members here should be fimilar with the car its was once USDM_onevia's. im leaning towards blown coupler or piping, i wish i had some time free this weekend to head down and help out. i will try and free up some time next weekend if you havent had any luck.

[Not_a_sr]

it has a horsham chip in it too so no boost cut ouch.

[nismo_chk]

yup thats my car with a few diff. things now.. but yea ive checked all the couplings, connectors, clamps everything i can think of, and unless there is something RIGHT in my face, i cant find a damn thing wrong with it..that would be awesome if some people would come over and take a look see.. where are u located?

It really doesnt feel like a fuel issue at all.. ive got a 255 walbro, and 450 dsm injectors.... it feels like an air problem.. vacum.. i dunno.. i guess its hard to describe it perfectly.. ud just have to see it or hear it or w/e...

[Not_a_sr]

im up in dayton. i will be at kilkare all day on sunday in the drift event hopefully as my car suddenly today started suffering really bad bucking and sputtering problems, i think my alternator finally gave out so im in the middle of replacing it and doing a oil change right now. hopefull it solves the problem, might want to check for loose grounds and have the alt checked if the voltage regulator goes bad it cause all kinda wierd problems.

[biosehnsucht]

just for fun: if you AC isn't hooked up, checked if the AC idler pully fell off?

it took me a few weeks to figure out what that small object was bouncing down the road behind my car one day, nothing seemed out of place...

this owuldn't cause any other problems, but just as far as things falling off haha

[sautee]

whats up let me tell u first its always nice to see a chick that wrenchs but what it sounds like is your no getting fire check your rotate distributer wires and plugs also chek your egr valve & cylinode its a ***** to get to but that will make your car run like **** and adjust your time . do u have an upgrade ecu or mass airflow senter because you might not be getting enouch air and well if your car cant breath then it will run like crap

[biosehnsucht]

hehe..

no EGR valve on the DET's, only on the DE's and possibly only FWD DE's ?

also no dist, we have cas - altho that being misadjusted can have the same effect as the dist being mistimed.

[sautee]

the more i have read it really seem like a vaccum problem eaither a line blew or your egr cylidoed or egr chech your line there located on the back of the head between the head and firewall there a pain in the *** to get to but its pssible and check your egr pull off the bottom vaccum hose and the car should try to die if it doesnt then its your egr vavle and with your cylidoed get a amps meter and see if you have a complete cyrice on your cylidoed and see if its onpeing and shutting also check your cat if its plugged then take a big hammer and chaize and hollow it out