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What does the ECM do when this condition is set? I know from searching that getting the open element filter out of the engine bay (Or cold-air ducting) will prevent this, however, does anyone know what ECM does with this sensor? Reduce timing, add EGR, limit boost, alter the fuel map? Just...

Has anyone run into this problem? Underhood temps around 150 Degrees warping the plastic Master Cyl. Cover, causing intermittent leaks? I see my brake fluid degrading, as well as leaking from the cover in the summer months. I have a 40 mile commute, heavy SoCal traffic for 75% of the time...

Got a problem... This part has been discontinued, however, I really do not need the entire shaft, only to fix the "Rag Joint" (Steering Coupler) at the end of the shaft, at the steering gear. I have searched, and read all the posts regarding this. In one post, a "Rebuild Kit" was refered to...

Has anyone replaced the entire fuel return line before on a 86/87 GN? Any tips? I purchased the fuel return line all the way to the front of the tank as well as the smaller one (With the flex line) that connects it to the FP regulator. Looking for any tips... Removal/Installation order...

Some of you may have seen my posts regarding the fun time i'm having getting passed CA Emissions... I have LOW BLMs, and I am attempting to lower my Fuel pressure to get this car lean enough to pass. (Get the BLMs closer to 128 +/-10) I can only lower the fuel pressure to 37 LBS. While this...

In checking into why my 87 GN is failing CA smog test, I used a Cam Sensor Adjustment tool to confirm my sensor is adjusted properly. This went as expected… Adjustment was OK, but I noticed something while cranking the engine by hand, and need to see if anyone has run into this. When I turn...

I am having troubles! While I am not coming up as a gross polluter, I have tested 2 times and cannot pass the 15 MPH test, even after fixing some exhaust leaks and installing a new CAT. Here are my numbers on the last test: 15mph: HC: 129 MAX 110, CO 0.14 Max 0.71, NO 73 MAX 772 25mph...

Anyone ever experience an automotive battery explosion? Was walking out to lunch today, and a newer Lexus (maybe 3-5 years old... They all look the same to me) sitting 3 spots from my GN had the hood up. I go over there, and this Green Interstate battery had literally blown up. The maint...

I need a little help. I installed 30# fuel injectors 3 months ago (w/Stock Regulator) and while my cars performance seemed to improve slightly (Mainly better idle/drivability) the O2 readings are still in the 800 - 900 range. Running very rich. My O2 sensor is less than 6 months old, always...

Has anyone taken it upon themselves to dump the cable operated remote mirros and replace them with electric/powered ones? If so, which GM model had similar styled side mirrors to the GN? Or was this an option on GN's? I don't know. My passenger side mirror hasen't worked since 93, and now my...

Looking for some advice in getting ready for this test. I am planning on or have done the following based on reviewing the many posts on this topic: 1. New Plug Wires (Less than 4 months old) 2. Plugs, new, Gap tight 0.035 3. Change oil 4. Re-install old turbo bell-mouth inlet/breather...

I have a problem... Maybe someone can help me out. My oil pressure switch connector PLUG, having had oil drip on it for years, finally deteriorated to the point of "Is that a connector or just a blob of sludge?" About the same time, the oil light just stayed lit all the time. So, I added...

I need a little help. It is finally raining here in CA and I thought I had this problem licked, but... On Monday, while I was replacing the Alternator, I decided to break out my printed copy of the wiper adjustment procedure (found on GNTTYPE) and I was happy to see, on my dry windshield...

I've had this problem happen 2 times in a 3 month period, and I am hoping someone has some insight... Something is apparently on the way out, but for some reason the "Batt" light is not detecting it (I have checked... it does light up during key on/engine off and durning starting.) Both...

Looking for someone that either has an idea or has already solved this problem: My factory computer module, located in the passenger kick panel, is no longer secure. The hole that the plastic "Rivet" pushes into (Behind the plastic computer mount assembly) cracked a long time ago. Obvoiusly...

I recently put my GN "Back-on-Track" by fixing an overboosting problem. Hasn't run this nice in years! But due to the cloud of unburnt fuel that escapes out the exhaust every time I start the car (Leak-down) I think it is way passed due for injector replacement (Over 150,000 miles on these...

Since I have to pull the steering wheel to replace the ignition switch/lock, I might as well get a new one. I know I can get one "Re-Wrapped" (as my leather on mine is deteriorating) but at that price, I might as well install an aftermarket one now and get the stocker re-wrapped later. Has...

Has anyone had to do this? I need to find out what special tools I need to replace the Ignition Key/Lock cyl. I found I was able to start the car without the key last night, and also remove the key while the car was running. I think you can replace just the lock, but it would seem best to...

Hi, Thought I would ask the experts about adjusting the boost on a stock GN with Ramchargers 93 street chip, stock everything else. I recently added a set of Postons Headers on my 87 GN, and man did that seal things up! I am running a stock turbo, and with my 6 year old leaky ATR headers...

I am ording a new IC from Ramchargers, and will be providing the information tomorrow on what it is I want. Trouble is, I'm not really sure! I have a stock injectors, turbo, and "Almost" stock Exhaust (Postons). I've been running on a Kenne Bell chip for a while, but as I have learned...