Ok, my '89 TII is running pretty bad. I had some people tell me it was a T.P.S. Wich made plenty of scence. Well I just put a new T.P.S. on and no diffrence!!! It's still dumping MASS amounts of fuel into the engine and it still sounds like I am only running on one or two plugs. I just put new wires on. One thing I can think of is the O2 sensor. I just put a new one from Bosh in when me and unique TII put in my downpipe, I was driving it home that night just fine then BAM!!! It all started, and yes I was getting on it pretty good when it happened. It dosent sound blown, I can still drive around but I have very little power. When I downshift and let it wrap down it sounds fine. My turbo is spooling like crazy 'cause it thinks i'm wraped up, but i'm not. Any ideas???????????????????????????????? https://www.nopistons.com/forums/pub...IR#>/dunno.gif

does it idle?



mike

Sometimes, depends on how hot the engine is

i would say vacuum leak. most of the "quirks" can be eliminated by fixing all the vacuum leaks



mike

anyone know how to check a coil? Trailer and Leader? Maybe one of those is shot.

I just disconnected my O2sensor, and it runs EXACTLY the same, think I could have melted the new one?

no, how about spark plugs?



mike

have you thought about checking your fuel plates... if one becomes "frozen" it can really alter fuel delivery... a similar problem happend to my 89 GXL about 4 months ago. :bigthumg:

huh???? What are those??? Sorry, i'm not the brightest star in the sky

hey here is a wierd one. When my car was running good I had a check engine light on, but now that it's running like crap, it went off, it turned off as soon as it started doing all this!!! that's odd!!!

what code does it have??



mike

ok, just put in new plugs and wires, no diffrent!!!

Do u have anyone to swap coils/MAF/injectors or ecus with? What kind of idle does it hold when warmed up?Do u have a vacuum gauge? When u put the plugs on were they drenched with fuel?

no I don't know anyone with a series 5 TII to swap stuff with. The idle sit about 300 acting like it wants to die. I do not have a vac. gauge. The plugs looked great on the front rotor, and the rear ones looked a bit damp, but not too bad. Now when I drive it it kinda lunges foward every now and then. I checked the coils and they are fine. When it's running my short range Air fuel gauge goes crazy. Jumping from rich to lean.

John has a vacuum gauge, if you want to check that. Also, check the wiring on the O2 sensor...some of those connections may not be the best.

no I don't know anyone with a series 5 TII to swap stuff with. The idle sit about 300 acting like it wants to die. I do not have a vac. gauge. The plugs looked great on the front rotor, and the rear ones looked a bit damp, but not too bad. Now when I drive it it kinda lunges foward every now and then. I checked the coils and they are fine. When it's running my short range Air fuel gauge goes crazy. Jumping from rich to lean.[/quote]

gotta be a vac leak. How long has it been like this, was there something u did to it to make it run like this?

It started after a DP/MP install. No other changes.

no I don't know anyone with a series 5 TII to swap stuff with. The idle sit about 300 acting like it wants to die. I do not have a vac. gauge. The plugs looked great on the front rotor, and the rear ones looked a bit damp, but not too bad. Now when I drive it it kinda lunges foward every now and then. I checked the coils and they are fine. When it's running my short range Air fuel gauge goes crazy. Jumping from rich to lean.[/quote]

gotta be a vac leak. How long has it been like this, was there something u did to it to make it run like this?[/quote]

ok, I must be honest, but you're not gunna like it. Yes I did something very bad. I took it out and ran it. Redlined 1st, 2nd, 3rd, and shut her down half way through 4th then my "check engine" light shut off(a bit odd). It sounded and ran great, but when I went to get back on the gas it ran like crap. I thought my Apex seal was gone. Now when I start it's putting out what looks to be oil burning smoke. I know I should not have been driving her so hard. It's just so tempting!

Maybe we should do a compression check too.



Did you check the O2 sensor wire?

Yeah Ed, I cut the wires and ran a better connection. How do I look for a vac leak? Just visually check all vac lines?

u blew a vac hose off most likely or an intercooler coupling deally..

That's impossible without taking off the UIM. Maybe we should do the vacuum lines and UIM gasket next weekend.



You can try to check for vacuum leaks with a can of wd-40...spray it around the vacuum lines and listen for a change in idle. You can also use water or propane...you decide how safe you want to be. https://www.nopistons.com/forums/pub...#>/biggrin.png

Ha Ha Ed Do you really want me to blow this thing up? You better just play it safe if you want to remain on the top of the list when I go to sell her. lol https://www.nopistons.com/forums/pub...DIR#>/moon.gif

check your TID for cracks

WD-40 won't blow your car up if you don't spray it on an open flame...so not on your exhaust. https://www.nopistons.com/forums/pub...DIR#>/wink.png

yeah but propane??????? Hey what might a TID be???

TID = turbo inlet duct



goes from your AFM to the turbo big black rubber plastic thing.... prone to cracking

Maybe it's time for a custom TID upgrade.

AFM??? Sorry, i'm kinda new at this. Would that spit out oil if it was cracked? 'Cause I just noticed a nice big oil spot on the ground!

AFM??? Sorry, i'm kinda new at this. Would that spit out oil if it was cracked? 'Cause I just noticed a nice big oil spot on the ground![/quote]

i'll post a pic just for you https://www.nopistons.com/forums/pub...DIR#>/wink.png



http://67.83.35.214:8095/photos/T2/tid/tid-2.JPG

http://67.83.35.214:8095/photos/T2/tid/tid-3.JPG



goes air filter, afm, TID, then turbo

The AFM (air flow meter) is what your air filter is attached to.

that is a custom hiflow TID https://www.nopistons.com/forums/pub...DIR#>/wink.png

spec of who?



i was wondering, does anyoner ever run a TID like that w/o a MAF, i never see that just a filter on the turbo. Why not try and get cold air in there?

i believe you will get like 2hp and it's not worth the effort to me....

Okay man how old are all the rubber lines in your engine bay( ie.. all original vacuum lines, some new some old,or all new)? If they are all original then you need to check the turbo inlet duct, the intercooler rubber couplings, the vacuum lines under the intercooler, and the lines at the front of your turbo. You should check for cracks and to make sure the are all firmly attatched. These are your #1 things to check. It sounds like your motor isn't blown, but because the problem started when you were really getting on it then you most likely popped off a line. If you had an ignition problem you would really have a rough ride from the car. It would also be really really hard to start. The other reason that I say it isn't the ignition is because when you drive the car it will act decent sometimes. If the ignition or coils were bad you most likely wouldn't be able to start the car at all.

spec of who?



i was wondering, does anyoner ever run a TID like that w/o a MAF, i never see that just a filter on the turbo. Why not try and get cold air in there?[/quote]

like this? BDC's.. filter in down infront of the wheel. he says it lowered his intake temps at the throttle body (so after turbo and IC!) by 40F over having the filter in the engine bay.

spec of who?



i was wondering, does anyoner ever run a TID like that w/o a MAF, i never see that just a filter on the turbo. Why not try and get cold air in there?[/quote]

like this? BDC's.. filter in down infront of the wheel. he says it lowered his intake temps at the throttle body (so after turbo and IC!) by 40F over having the filter in the engine bay.[/quote]

40F HOLY CRAP..... never knew that. I AM CORRECTED!!

that is MY ENGINE BAY LOL.... even the griffin rad LOLOLOL

https://www.nopistons.com/forums/pub...IR#>/dunno.gif I just spent 2 hours looking at hoses, nothing yet, looked at the suff before the turbo in front and around nothing! Getting ready to rip off the UIM to see what's under there. Just an update!!! https://www.nopistons.com/forums/pub...IR#>/dunno.gif

I will check compression first and we can start from there.

C