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On ocassion after making 12+lbs of boost, the vacuum hose to the EGR valve will pop off. The EGR valve itself is fine and works with vacuum. Does this mean that the vacuum block its hooked to isn't functioning properly? My understanding was that it was sort of like a check valve solenoid or...

I'm putting my stock downpipe back on, and I misplaced one of those springs that couples the turbo housing to the downpipe flange. Who on earth sells these things? All I need is one :rolleyes:

Having just got my new ECM, my old one's pins had corroded from moisture, I noticed that the ECM connector terminals are corroded as well. Where can I get some new ones because they are seriously rusted? Also is there a special tool for removing them from the connector?

Well I finally tracked down the periodic problem I've been having. The wiring harness connector to the ECM is somehow getting moisture in it and corroding the pins. My ECM is a few months old, and it feels like pin C16 is loose (+12 V pin). How do I clean the pins? And will the car act right...

Driving to work today, Im doing about 70mph when all of the sudden the GN takes a crap right on the hwy. RPMS drop to like idle, I have no power, it's surging and acts like it wants to cut off. I limped to work and by the time I got there it seemed like the problem went away. Does this sound...

I haven't been running one since I put on the 3" DP. This DP extends maybe 5" past where the stock one does making it impossible to put the stock cat back on. So I need like a 10in cat, is there such a thing?

Does anyone know when gnttype.org is coming back?

What happened, the site no longer works? :(

The car starts and runs fine, shifts nicely downshifts properly for the 1st 1/2 hour you drive it. After that the shifts stumble and it doesn't downshift properly. Sounds like it hangs in 2nd, instead of going to 1st, 3rd instead of 2nd etc.? I originally thought the problem was the TV, so I did...

I performed a search, and no matches were found. Well the transmission shifts through all gears just fine as long as Im not stuck in traffic. When I sit in traffic for a while the problems start. 1st to 2nd slips (it feels like its shifting twice, it goes bump, bump then shifts), and the same...

What is the exhaust manifold made of: Steel or cast iron? My guess is steel, but others have disageed. I ask this because in trying to free the nuts from the manifold to turbo housing, I ended up punching a hole in the exhaust manifold. Now I need to welder. :(

Im putting my new turbo on today, everything was going well until I got to the point were I was disconnecting the exhaust manifold to the turbo housing. I have never encountered bolts seized in that tight. So far I've tried wd40, torching, and all I have accomplished is destroying the bolts...

I got man handled by one of these last week. Luckily I wasn't in the GN, but sadly I was on my R1. :( Im rolling along unsuspectingly in 4th @ about 70mph when this mercedes blows by me at like 100. I kick it down to 3rd, but try as I might he keeps pulling away. I pull up next to him at the...

Just thinking, not that I have the guts to try it, but won't 87 octane fuel produce less unburned gas thus lowering the HCs?

I just failed emmsions worst than the last time I took it. I turbo-linked it and saved the data after each test. The car now really doesn't idle as smooth as a month ago but it drives OK. Only thing different I think was the fact I changed the plugs/wires & O2 sensor. The O2 sensor readings now...

In my other thread I talked about how after the overdrive was engaged the tester would let the RPMs fall to like 1800, then step in it again taking it back up to speed (in OD). Would that cause unburned gas to load up? I failed on HCs so would there be a difference if I had the tester drive w/o OD?

I just barely failed because of HCs back in march. So a month later I change my plugs/wires, new ECM (unrelated problem) and MAF, cleaned my dirty black air filter. Took the test and I failed worst on HCs and now failed on NOx. Last week I discovered that my cat was hollowed out by previous...

I did a search and no one else has had the same problem Im having. I didn't realize it till I had to slam on the brakes and the car gradually slowed and pedal just got hard. The car has had the vacuum conversion done to it. I went ahead and added a vacuum resevoir and I still have the problem...

It finally happened yesterday as I was coming home from work, but I blame it on my cockyness from never having any real competition. Well anyways as I merged off the hwy I pulled in front of an F150. He was tailing me pretty bad so I slowed down even more (we were in traffic so he couldn't go...

Lately the GN has been having trouble with the trans. On occasion at 45-50mph it will shift back and forth from 4th to OD. It is kind of bothersome because the car somewhat surges. Is there a problem with the solinoid or something?