RE: [doc] Cold Start Switch?

[Nick Tomlinson <nickandkathryntomlinson@xxxxxxxxxxx>]

I have seen the K-Lambda Jetronic engines run a bit naff if they are not set correct, yet run OK once warm because the Oxygen sensor over compensates.
 
The Duty cycle of the frequence valve via fuel computer (or diagnostic plug) should be checked for best tolerance, or use an oscilloscope on the oxygen sensor.
 
The best course of action would be to check fuel pressures etc and do a full diagnostics.
 
There is another white relay holder (3 wires) for hot climate countries to pulse the cold start valve during engine cranking. This is normally shoved out the back near the fuel pump relay.
 
NickT.

Richard <dickyh11@xxxxxxxxxxx> wrote:
Hi John

The missing white module is for the interior light delay.

The cold start injector is unlikely to be causing your problem - how
long does the engine have to run before it smoothes out?

It could be the CPR on the left hand rocker cover just in front of the
oil filler is duff, but unlikely. Check your vacuum hoses are all
connected up.

The 'white relays' are actually ballast resistors designed to drop some
voltage off the coil, yes they DO get hot.

Rich H
DOC 365 VIN 1274


> -----Original Message-----
> From: doc-uk@xxxxxxxxxxxxxxx [mailto:doc-uk@xxxxxxxxxxxxxxx] On Behalf
Of
> John Tien
> Sent: 09 August 2005 19:26
> To: doc-uk@xxxxxxxxxxxxxxx
> Subject: [doc] Cold Start Switch?
> 
> Dear all,
> 
> My D tends to stall easily when start cold, and no
> problem at all after the engine runs hot...
> 
> I remember the previous owner saying he disconnected
> the cold start switch (or hot? I am not sure) as he
> live in Australia...
> 
> In the fuse compartment, I see a white relay plug that
> has no relay connected to it... is this the cold/hot
> start thingy? And will this be the thing causing the
> stalling problem I have in deadly hot Hong Kong?
> 
> A friend of mine said there may be mis-fire or fuel
> injection blockage on my car, as the engine kinda
> vibrates when cold... but it tends to be ok once
> hot... doesn't seems to be correct, right?
> 
> Oh, on another matter... the white relays that's near
> the engine compartment light switch gets hot to touch
> after a while of driving... is this normal? I have
> cleaned out the connections already...
> 
> Many Thanks in advance for any help on this!
> 
> Regards,
> John Tien
> DOC 8
> RHD 3046
> 
>





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