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Basic Hotair Info!
Below are some links to basic buick info! Check 'em out, and anyone else feel free to add to this thread!
THANKS! Firing order, cylinder & coilpack diagram Ignition Module wiring diagram Cam Sensor setting info ECM connector plugs wiring diagram Vacuum hose routing with SINGLE wastegate line Vacuum hose routing with DOUBLE wastegate lines Turbo Mounting diagram Trouble codes (This is a link to gnttype.org's section, very comprehensive!) Fuse Panel diagram and info (big but easy to read!) More hose hookups Intake view Another intake view MORE hose hookups -------------------------------- -------------------------------- NO-START TEST Below is a series of tests to troubleshoot a 'no-start' condition. (I basically reprinted this from a GM troubleshooting flowchart, hopefully it will be of some help!) Below are links to repair manual pictures to reference from: ECM Plug Sensor Plugs You'll need to get at the ECM and the cam & crank sensors to do some voltage tests. If you have a NEEDLE type voltmeter, it may work better for these tests, as it will visibly "swing" when the sensor switches open & close (IF they're working okay!) Here goes: First, test your meter and ground! (see ECM Plug) Check connection A-6, "ign, ECM fuse" for 12 volts. (for ALL tests, BE SURE the negative lead of the voltmeter is connected to a GOOD GROUND!) #1- (see ECM Plug) With the key off, disconnect the ECM A-B connector. With the positive lead of the voltmeter, probe the B-5 connection (highlighted yellow, this is the crank sensor signal) Crank the engine and watch the meter...you should have varying voltage from 1 to 7 volts. If NOT okay, proceed to #2. If you ARE seeing correct voltage, your cam & crank sensors are okay, and your coil and/or ignition module may be the problem! You need to loosen the coilpack, and check the BLUE wire for 12 volts, key on. If it DOES have 12 volts, then the problem is likely the ignition module. #2- now probe the A-11 connection... (highlighted green, this is the cam sensor signal). Crank the engine...you should have varying voltage from 1 to 9 volts. If it IS okay, THE CAM SENSOR IS FINE, AND YOU ONLY NEED TO TEST THE CRANK SENSOR IN ALL FURTHER TESTS! If it's NOT okay, there's no cam sensor signal! Plug the ECM connector back in, and head for the sensors! #3 (see "Sensor Plug") Unplug the cam sensor plug. Turn the key "ON" ...On the MODULE SIDE of the plug, probe the "A" wire for voltage, after which probe the "B" wire for voltage. You should have between 5 and 11 volts on BOTH wires. If you ARE seeing correct voltage, THEN: with the negative lead of the voltmeter, probe the "C" wire, and with the positive lead probe the "A" wire. You should have between 5 and 11 volts. Note the results, then REPEAT THIS TEST WITH THE CRANK SENSOR PLUG! If ANY of the sensor plug tests FAILED, you have a probably ignition module problem... If ALL the sensor plug tests PASSED, then PLUG IN the sensor plugs, and proceed: #4. Test the cam sensor: Probe the "B" wire of the cam sensor, then crank the engine and watch the meter. You SHOULD have varying voltage between 1/2 and 9 volts. REPEAT THIS TEST WITH THE CRANK SENSOR! If either sensor fails this test, then it's possible that sensor is bad! If they PASS this test, it's likely the ignition module, or the connections TO the ignition module are bad) Hope this makes sense! ![]()
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Custom Dress-up stuff for your TURBO REGAL, Console Overlays, Aluminum Shifter Handles, Wheelcap Overlays, Door and Underhood Dress-up, and More! contact Mark Hueffman at www.buickgn.com Last edited by Buick From Hell : July 8th, 2002 at 11:57 PM. |
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BFH...When I installed my new turbo, Herb (turboregal84) gave me this website...has some of the pix that you already posted, but some you didn't...hope this helps, and adds to the post...
http://www.geocities.com/gnowner85/info.html John
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'84 GN - cold-air intake, electric exhaust cutout, custom rebuilt motor, LS1 valve springs, cam, F-body rad, 160 thermo, ATR downpipe, Jay's GN braided up-pipe, LS1 MAF, MAF Trans, Walbro 340 w/ hotwire kit, hand built tranny, ATR mufflers, scanmaster, tranny cooler, adj. fuel press. reg, 37lb injectors, knock-boost-oil press-water temp-fuel press guages, adj. wastegate, test pipe w/ dump, John Craig TA-33c, 10mm wires, GTA rims, Blue Neon undercarriage, true HID headlamps, TV's w/ Playstation 2 |
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I don't have a pic that would help you, but if anyone does, they can e-mail it to me, and I'll get it on the net and put a link to it above!
Anyone??
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Custom Dress-up stuff for your TURBO REGAL, Console Overlays, Aluminum Shifter Handles, Wheelcap Overlays, Door and Underhood Dress-up, and More! contact Mark Hueffman at www.buickgn.com |
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Here's a suggestion...
If more people spent some time reading and figuring out how and why things work like they do on these cars, there would be less headaches and throwing "more mods" and parts at the problems instead of replacing or fixing the little problem that is causing everything else to go haywire!!! Each sensor and adjustments to those sensors(the ones that can be adjusted) affects something else...If you know how all these parts and sensors relate to each other, everyone wouldn't be as frustrated and pissed off at their cars as some have been lately... READ IT AND LEARN ABOUT IT!!! THE NERVES YOU SAVE, MAY BE YOUR OWN!!! OH YEAH...Go here for more info... www.gnttype.org read EVERYTHING!!! Regardless if it's for the hotair cars or the 86/7 Intercooled cars...The principles are the same for either, just some parts are relocated in different positions...Everything else works the same... Enough of my ranting...
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Jim F fjm568@swbell.net 85 GN 87 T 66 Skylark |
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How about a good diagram of the electrical connections. I just fell into A 84 gn with a rebuilt engine was told that it would only idle. The previous owner had sent the car to three different shops and on it is fried. Nobody knows what they were doing . I need a starting point. How about a good Turbo Manual also???
Russell in Western Central Florida
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Russell 1980 Regal Limited project 455 (getting there) 1984 GN, Walbro GSS340 with hot wire kit. 87 ecm, coil and ignition module. |
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Russell,
If you have any questions, try posting them in a seperate thread... This thread that you are posting in is just a general info thread meant to stay at the top of the page, i.e. basically what is called a "sticky" You will probably also get more responses in a separate thread as well... Start a new thread and I'll try to give you some answers there...There are a few things to check that we can walk you through the procedures...Also go to www.gnttype.org and read through everything...Most, if not all, of the info that is being told here, is already over there in one form or another... As I said, start another thread and I'll try to help you out some more there... Thanks...
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Jim F fjm568@swbell.net 85 GN 87 T 66 Skylark |
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Thanks for info
I have been dying over here no one I know knows crap about Gn's no less anything about the Hot Air cars. This has helped me tremendously I am going to change right now and fix that mess of vacumn lines under the hood of my car to this point I have been guessing on how to put it back together thanks again.Now only if I knew how to change the Heater core without having my hairfall out. NHRABill@Yahoo.com 85' GN #77 of 2102 all stock (For Sale) sharp car in and out rebuilt engine 65,600 orig. miles 75' Corvette Stingray 355 w 6-71 Littlefield Blower Wieand manifold dual carter 750's th-400 3500 stall 3.90 rear much more!! |
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Sensors
Just a couple of pics of basic sensors and locations.
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Chips By Turbo Tweak -"Simple And VERY Effective" Sometimes what counts is "That which you DON'T do" Nobody likes the "Smell of @$$", so don't show yours. In GOD we trust, all others must provide data.YES, Already replaced that too, TWICE! . . Pics here; It's only slow because it's stock and missing 2 cylinders! Still time to claim your FREE Present! Read on the future of "World Peace" |
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Vin 9 - HOT AIR - Electrical Wiring Diagrams
Some GREAT additional information for your HA projects.Thanks Caspers Electronics!
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Chips By Turbo Tweak -"Simple And VERY Effective" Sometimes what counts is "That which you DON'T do" Nobody likes the "Smell of @$$", so don't show yours. In GOD we trust, all others must provide data.YES, Already replaced that too, TWICE! . . Pics here; It's only slow because it's stock and missing 2 cylinders! Still time to claim your FREE Present! Read on the future of "World Peace" |
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Crank but no start
Another GREAT " Crank but no start " link.
Edit: Added for search: No spark No start No fuel No pulse Does not run
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Chips By Turbo Tweak -"Simple And VERY Effective" Sometimes what counts is "That which you DON'T do" Nobody likes the "Smell of @$$", so don't show yours. In GOD we trust, all others must provide data.YES, Already replaced that too, TWICE! . . Pics here; It's only slow because it's stock and missing 2 cylinders! Still time to claim your FREE Present! Read on the future of "World Peace" Last edited by Jerryl : August 1st, 2006 at 10:13 AM. |
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Wiring Diagrams etc
Another great thread on wiring, for HOT AIR cars!
Hot Air wiring diagrams!
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Chips By Turbo Tweak -"Simple And VERY Effective" Sometimes what counts is "That which you DON'T do" Nobody likes the "Smell of @$$", so don't show yours. In GOD we trust, all others must provide data.YES, Already replaced that too, TWICE! . . Pics here; It's only slow because it's stock and missing 2 cylinders! Still time to claim your FREE Present! Read on the future of "World Peace" |