[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
CIS-E fun, facts, foibles, follies and fuestions
I think I'll try the same thing. I've got this fox that I've swapped 4 fuel
modules, one from the 16V just to see. Still confused. The 16V one worked
best but was way way rich. The stock one is popping like it's bad timing
and the 8V Jetta one was just to lean. I just want it to run good enough to
beat on. Everything else is golden.
Rave Racer
Current:
'91 Jetta GLI 2.0L 16V
'81 Scirocco Mk1 1.8L 8V Digifant 2
'86 Fox
2 GTI parts cars
Gone:
'89 Jetta 1.8L 16V GTX
'87 Audi 4000 Quattro
'72 Triumph GT6
http://spaces.msn.com/raveracer77/photos/
http://www.myspace.com/rave_racer
___________________________________________
----- Original Message -----
From: "David Brown" <sharpshooter33@roadrunner.com>
To: "scirocco scirocco" <scirocco-l@scirocco.org>
Sent: Thursday, April 19, 2007 20:39
Subject: Re: CIS-E fun, facts, foibles, follies and fuestions
> My moneys on the exhaust going bad now. That's always been my luck with
> fixing something...then something else goes wrong.
>
> Interesting stuff though...made me wanna go out and sand down my
> connection to the coolant sensor. I've been fighting the same type running
> problems and I've just been too busy messing with other stuff to get out
> and work on it.
> David
> ----- Original Message -----
> From: "Nate Mellom" <doubt@inwave.com>
> To: "Scirocco list" <scirocco-l@scirocco.org>
> Sent: Thursday, April 19, 2007 11:27 PM
> Subject: CIS-E fun, facts, foibles, follies and fuestions
>
>
>>A little history.
>> I bought my '88 16v in October 2005 from some poor soul who dumped $1500
>> at a local import shop to get his car running correctly (I have
>> receipts). New distributor, timing belt, fuel distributor work, etc, etc,
>> etc. He sold it to me for the princely sum of $800. The issue?
>> Stumbling, stuttering and a complete lack of power during acceleration.
>> It was barely drivable. It got worse as the humidity went up. I played
>> and tinkered with it for months, new O2 sensor, made up a nifty DPR test
>> rig, checked timing, but nothing. When I checked my mixture, I'd get
>> either 0.00 or 9.99mA. I never got an honest number. Eventually I
>> adjusted something (still not sure what worked), and it actually ran well
>> enough to take on DD status. I knew it was running WAY rich, I was using
>> fuel like mad, and it stunk, and sometimes it was a little smoky. A few
>> months ago I swapped in a new cap and rotor, and the humidity-related
>> stalling and stuttering cleared up.
>>
>> Last week, I had it in for my favorite VW/Audi gurus to do wheel
>> bearings, and for shits, I asked him to check my mixture (I still hadn't
>> gotten a real reading). When I picked it up, he was floored, even HE
>> only got 9.99mA. He told me he could play with it, do a pin test (per
>> Bentley), he figured there was a broken wire somewhere, SOMETHING to
>> explain the high reading. He did play with the mixture, and was going to
>> fiddle with it more, but I had to take it home. It was like day 1 again.
>> Stumbling, hesitation, hunting idle, and it would usually drop low enough
>> to stall at a stop. Got it home, played with mixture and idle settings
>> until I thought it I got it right, took it to work the next day, same
>> thing, a little better at best. Got home, broke out the Bentley, found
>> the CIS-E electrical test section, and went bananas. I tested everything
>> I could with one person (a few tests required cranking and testing), and
>> found what I thought was a bad reading for the coolant temperature sensor
>> reading. Should be (x ohms @ x *c). It didn't seem right for the
>> temperature of the engine. I pulled the wire off the sensor, sanded the
>> connector all nice and shiny, plugged it back in and... Shit! A real
>> reading! And, it even matched what it should be, based on the chart!
>> Well, now we're cooking with gas! So, I get back to checking for the
>> magical 5mA. Sure enough, 5 or 6 turns clockwise, I actually got a
>> reading, then a range! Dialed in 5, got my idle smooth and consistent,
>> and whaduhyaknow? The thing runs like a freaking top.
>>
>> Lesson learned? Check over everything, twice or thrice if need be,
>> eliminate possible issues, and you'll have a good chance of finding the
>> problems.
>>
>> Now, some questions.
>>
>> Someone posted on a VW forum a very good write-up on checking mixture and
>> idle, and it helped me greatly. At the end, he wrote to enhance
>> performance in mid-range RPM power (4000 on up), to richen the mixture to
>> about 2.5mA. Is it a good idea? Will I see results? With the proper
>> mixture it seems a little soft now, it seemed to have more zip when it
>> was ear-tuned, so maybe?
>>
>> My exhaust note seems louder now, since things are right. Could this be
>> because of the proper settings, or is my exhaust just failing, and
>> they're just happening at the same time?
>>
>> Sorry for the novel, my longest post in a long time.
>>
>> Nate
>>
>>
>> _______________________________________________
>> Scirocco-l mailing list
>> Scirocco-l@scirocco.org
>> http://neubayern.net/mailman/listinfo/scirocco-l
>>
>>
>> --
>> No virus found in this incoming message.
>> Checked by AVG Free Edition.
>> Version: 7.5.446 / Virus Database: 269.5.4/768 - Release Date: 4/19/2007
>> 5:32 AM
>>
>>
>
>
> _______________________________________________
> Scirocco-l mailing list
> Scirocco-l@scirocco.org
> http://neubayern.net/mailman/listinfo/scirocco-l
>