'90 200T starting issues

[Briand Parenteau]

Thanks for the reply... The thermo time switch is shown in the bentley
manual, for the MC engine, but upon looking deeper into it I guess you are
right.  What I mistakenly identified was the injector cooling fan thermo
switch, which I'm guessing now would have nothing to do with my problem.

I have replaced the both ECU temp sensor and multi function temp sensor you
had mentioned, and that is shown at the SJM Autotechnik link, within the
last 3 months.  I'll go back and test those circuits.

bp


On 12/21/06, E. Roy Wendell IV <erwendell at mac.com> wrote:
>
>   On Dec 21, 2006, at 1:29 AM, Briand Parenteau wrote:
>
>  Sorry for not giving greater detail.  The problem is at cold start and
> hot
> start.  I can get the car started with ether.  It has a stock ECU and I
> have
> a spare that I swapped in and out, problem persists.  Thermotime switch
> does
> exist, shown in the bentley manual, and I've identified it's location on
> the
> vehicle.  If I get it running, and turn it off it'll restart immediatelty,
> but after 10 minutes of sitting, no start.  I pulled out the CSV and
> watched
> it fire while conducting output test on ECU.  However on start up it looks
> like an open circuit there, or perhaps a short to ground, gonna
> investigate
> this angle further tomorrow...  Plugs are dry.
>
>
> TIA,
>
>
> bp
>
>
>
> Geraint is correct, there is no thermo time switch on any MC engine. The
> CSV is controlled entirely by the ECU which is why there is an ECU output
> test for it. If there was a thermo time switch then why have the CSV hooked
> to the ECU?
>
> The component that you are looking at and assuming is a thermo time switch
> is probably the multi function temp sensor which is similarly bulky. The
> sensor you need to check is the one pin temp sender screwed into the head
> near the #1 spark plug. See this excellent reference:
> http://www.sjmautotechnik.com/trouble_shooting/10vcoolt.html
>
>
> Be very very careful with the moronic layout of the Bentley manual. Many
> times the component layout diagrams are mislabled as applying to all turbo
> cars when in fact they are correct only for the very early turbo cars (KT
> engine?), not the MC turbo motor.
>
>  Roy Wendell
> erwendell at mac.com
> Too many type 44 tq
> A pair of MR2s
>
>
>
>



-- 
Briand Parenteau
Showmix
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617 460-0128 cell
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