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    Random High Idle / Sticking Idle - <master thread>

    Yep - mechanical fixes are a critical part of debugging this problem. When I discovered the weak return spring issue quite a while back, a couple people replied that it was exactly their problem. Thankfully I had 3.73 gears at the time so I had only gone partially crazy :) . The fix was obvious...
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    If Idle Hang were a person.......

    Check out my post a while back - it lists everything I found on threads (and tested myself) and the combination that worked for me (strong return spring + IAC blockage). I have not had a single issue since
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    More idle hang info

    Glad this helped - it had driven me nuts for over two years and was so hard to detect because people usually test by blipping the throttle which allows enough inertia to close everything up properly I ended up just using needle-nose pliers to pull 1/2 of the dual spring up to catch on a notch a...
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    More idle hang info

    I left the dowel in - it does seem to kick down a bit faster with it, though by the time I fixed the spring, things were working so well that I didn't go back and seriously verify. I have stock throttle bodies that the previous had honed smoothe The bad spring basically was strong enough to...
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    More idle hang info

    I finally got tired of trying to drive in traffic with a 1700rpm idle and decided to get serious about fixing it. After reading all the threads, I found out the problem was something that no one has mentioned - weak throttle return springs! Things I tried first: 1) reset PCM - no noticeable...
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    Power windows

    The plastic rail insert could have slipped out. They are poorly attached by staples and my passenger rail gave way last year. I had to epoxy it back in (don't use too much!) and everything seems fine now
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    How to determine if CAT is clogged

    I was going to check the backpressure at the o2 holes, but I went to Speed Merchant (the only knowledgeable part store I've found so far) and they didn't have anything that would mount - I was told by a mechanic that I need to check while under driving load and it should be &lt; 3 psi
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    How to determine if CAT is clogged

    Before taking my Viper to the shop to determine why it is down 80+ HP, it was suggested that I check the cats. How do I determine if they are clogged and can I get a gross idea w/o having to find an exhaust pressure gauge? I took off the driver side cat and can't find the brand that the...
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    Dyno Run - Low #s For Current Mods

    Thanks - Ted has done quite a bit for me but he didn't have dyno facilities back then - I'll probably have to ping him again soon Ben - driving my car would be like going for a spin in a civic for you - nice looking car, but the throttle won't seem connected. I do have a nice 500HP 428CJ short...
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    Dyno Run - Low #s For Current Mods

    I tracked down the online Mopar catalog and PCM #4848702Ax is for a 97 - 98 is 4854704Ax so this shouldn't be the problem
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    Dyno Run - Low #s For Current Mods

    Thanks for the info! Here is more data 1) I pulled 5 Champion RC12LYC plugs and they are all white and 2 were undergapped at just over .025 instead of .035. I'll put the rest later but it looks like low A/F. A/F at peak HP is 12.4(5500 RPM). The plugs and Mopar wires have about 1000-1500 miles...
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    Dyno Run - Low #s For Current Mods

    If I am comparing correctly, it looks like I am down around 100 hp from similar setups! Can A/F being off by about 1 full point make that much difference? Someone mentioned about possibly blocked cats and I have a pair of open pipe replacements I could try, but that is a bit of work Thanks again...
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    Dyno Run - Low #s For Current Mods

    I finally had my 97 GTS Dyno tested and the #s are low for the mods on the car (most were put on before I bought it). Peak Hp was 418@5500 and torque was 465@3700 with an A/F ratio starting at 13.5-14 @ 2500 and dropping to 12.4 by 5000. These don't seem dramatically improved from stock My...
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    Folks with 3.73 differential. How do you like it?

    Didn't like my 3.73s at all - constant shifting and the only advantage I saw was that I would never hit the shift lockout :) I swapped for 3.45s which work great on my modified car. I can still use 6th on the freeway and there is plenty of pull off the line
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    saw shifter that I want, Anybody know where to get it?

    It looks nice (one came w/ my used Viper), but isn't very comfortable for quick shifts - especially if you have a short shifter. The MGW chrome/rubber ball is much nicer IMHO
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    Need help with pedal selection

    http://vca1.viperclub.org/ubb/Forum14/HTML/011618.html This is an earlier post where I gave full installation instructions for a set of Razo pedals that look great and definitely bring the pedals closer together (maybe a tad too much for my liking) There are numerous Razo knockoffs available...
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    3.55, 3.73 or stock?

    I was able to track down some 3.45s and they are a great change from the 3.73 that came w/ my car. Do not go with the lower gears if you plan any more mods to your car - you will have severe traction problems and will blow through the power band too fast to enjoy it 3.45s allow good hookup and...
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    CA Insurance

    Allstate is one of the most expensive companies around. I have 3 cars with Nationwide 2 Acuras around 1 year old and a Viper with $1000 deductible and 100/300 coverage. The Viper ( &lt; 8k/year) costs $540! and the Acuras are a little over 600 each. I am planning to change homeowners insurance...
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    Wheel Techniques Wheel Polishing

    2885 S. Winchester Blvd. Campbell, CA 95008 1-877-wheeltec / 408-866-5859 They are usually closed on weekends and don't have an answering machine
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    Dropped a Mov'it brake caliper on the freeway - aka "case of the missing locktite"

    Re: Dropped a Mov\'it brake caliper on the freeway - aka \"case of the missing locktite\" The scariest part wasn't having the caliper fall off - I felt a terrible pull and downshifted before tapping the brakes the last time at around 15-20mph. If you want a quick ulcer, have your Viper 1/3 of...
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    Wheel Techniques Wheel Polishing

    Finally got my Viper back from the brake "incident" described elsewhere and had my Fikse FM/10 wheels polished while waiting for parts. AWESOME!!! Took quite a while (6 weeks), but they look dramatically better than even the new wheel I bought as a repair - there truly is no comparison. Pricing...
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    Dropped a Mov'it brake caliper on the freeway - aka "case of the missing locktite"

    Dropped a Mov\'it brake caliper on the freeway - aka \"case of the missing locktite\" This is a warning to all Mov'it Porsche Big Red brake kit owners - ensuring that whoever installed your set used proper locktite/lockwashers and torque settings is really, really, REALLY CRITICAL. There is a...
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    Clay bar problems HELP

    You'll probably have to use a small amount of orange citrus cleaner or wd-40 to remove the grease if the area is that big - just spray onto the rag and rub very gently. Getting that much off w/ a clay bar is probably hopeless now - clay bars do work great for smog fallout and very small tar...
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    GTS Cabin Drone

    I added "low-back" corkscrew inserts to my Snake-Oyl exhaust(no muffler) and dynamat on the entire rear section - did absolute wonders. It went from a beehive beneath the seat to being able to listen to the stereo at loud rather than concert levels
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    Mopar Ecu

    Other PCMs might also fix your problem. I sold someone my Henessey Stage I and he said it worked for him.

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