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Fuel infection woes
Before my ICM failed, my tach used to bounce off idle.
The engine seemed to run fine, but the tach would bounce
up a couple hundred RPM. As it got worse (ICM), the tach
bounced more often and the fuel pump relay started
clicking.
I have had so much trouble with the ICMs, I think
I’m going to keep a spare around.
John
On Wed, 07 Aug 2002 13:09:41 -0700
Euroroc II <flaatr@yahoo.com> wrote:
>Ignition module is the small black puck on a heat sink
>near the Jetronic box...
>
>Tell me more about the tach jumping thing, you got my
>attention. My car is running fine but at around 3K to
>3.5K my tach seems to get a bit confused and hesitates.
>If I am holding steady speed the tach will wander around
>+/-200 RPM in this area. All other points on the tach are
>fine and there is no loss of power thru the band.
>
>Kinda interesting to accelerate and watch the tach go up,
>up , up, back a little, up a little, back a little, Oops
>gotta go up, up, up and up. Entertaining and unsettling
>at the same time.
>
>Any Ideas?
>
>-Raffi
>
>At 03:43 PM 8/7/02 -0400, you wrote:
>>hey I just remembered my tach does the jumpy thing too.
>>hmmmm
>>next where is the icm? is it the box up by the whiper
>>motors? I have spare on of those.
>>
>>
>>>From: "John Erickson" <ranahan@charter.net>
>>>To: "Jeff Toomasson" <jtoomasson@yahoo.com>,"John
>>>Erickson" <ranahan@charter.net>,
>>> <scirocco-l@scirocco.org>
>>>Subject: Re: Fuel infection woes
>>>Date: Wed, 07 Aug 2002 15:10:01 -0400
>>>
>>>Ignition Control Module. Among other things, the "on"
>>>signal for the fuel pump relay starts there and runs
>>>through the knock box before it finally gets to the
>>>relay.
>>>
>>>
>>>One of mine was heat sensitive. The car ran fine cold,
>>>but as soon as the ICM got warm, it started cutting out.
>>>it finally just shut off.
>>>
>>>I had another one fail right out of the box (it was new).
>>>The tach was bouncing all over the place and the fuel
>>>pump relay was clicking faster than a blinker relay. The
>>>relay was eventually off more than on and the car ran out
>>>of fuel.
>>>
>>>HTH (at least its another option).
>>>John
>>>Long Beach
>>>
>>>
>>>
>>>
>>>On Wed, 7 Aug 2002 11:38:08 -0700
>>> "Jeff Toomasson" <jtoomasson@yahoo.com> wrote:
>>>>ICM?
>>>>
>>>>Idle Control Module?
>>>>
>>>>inquiring minds want to know! (well, maybe just my
>>>>feeble one! :)
>>>>
>>>>JT
>>>>
>>>>----- Original Message ----- From: "John Erickson"
>>>><ranahan@charter.net>
>>>>To: "Elijah R" <nicadimus@hotmail.com>;
>>>><scirocco-l@scirocco.org>
>>>>Sent: Wednesday, August 07, 2002 10:51 AM
>>>>Subject: Re: Fuel infection woes
>>>>
>>>>
>>>>>I had a problem with mine stuttering. I replaced lots of
>>>>>stuff. Most of it needed replacing anyway. Then the car
>>>>>completely died. It was the ICM ($40, new). When I
>>>>>replaced it, the car not only ran again, but the
>>>>>stuttering was gone as well. It only took me a year to
>>>>>find it. :).
>>>>>
>>>>>John
>>>>>Long Beach
>>>>>
>>>>>
>>>>>On Wed, 07 Aug 2002 11:58:15 -0400
>>>>> "Elijah R" <nicadimus@hotmail.com> wrote:
>>>>>>Well I am about at wits end with my car stuttering @2800
>>>>>>>Rpm. I
>>>>>can't seem to get my finger on the cause, new >pumps, new
>>>>>injectors,
>>>>>new ignition, new filter, new >vacume lines, re-timed a
>>>>>dozen times.
>>>>>Who out there has >converted to carbs and can anyone
>>>>>recomend a
>>>>>sidedraft >setup for the 16V. A few of my MKI's I had a
>>>>>two
>>>>>barrel >weber that traveled from car to car with me and
>>>>>they
>>>>>ran >nicely, my mechanic had some delorto's that I was
>>>>>envious >of cuz
>>>>>his MKI was faster than mine. But after being out >of
>>>>>vw's for several
>>>>>years maybe there is some thing >bigger better bader out
>>>>>there on the
>>>>>market now. I've >seen a few pics wiht some nice setups.
>>>>>Any input
>>>>>would be >much apreiciated.
>>>>>>
>>>>>>F.Y.I the digitizing of Dirk's schematic are going slowy
>>>>>>>but surly,
>>>>>the the profile is compleat and working on the >rear view
>>>>>now. :)
>>>>>>
>>>>>>Elijah
>>>>>>
>>>>>>
>>>>>>
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>>
>>
>>
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