[928uk] Temp II Sensor failure symptoms

[Paul R Smith]

Probably is just the temp II connection, but other possibilities: Fuel 
Pressure Regulator/Dampers, idle contact in Throttle Position Switch, 
bad ground???, bad connection to idle mixture potentiometer or Lambda 
sensor failure???

Smiffy

On 06/06/2024 09:10, Adrian Langford via 928uk wrote:
> Does it run any better with MAF disconnected?
>
> Adrian
>
>> On 6 Jun 2024, at 09:08, Paul via 928uk<928uk at lists.928.org.uk>  wrote:
>>
>> Out of the blue the engine has just started running rough, hunting at idle,
>> running rich
>>
>> I hoping it's just the temp II sensor, or the wiring in the sensor plug
>>
>> The only thing I've done with the car since it was last running was pull
>> the fan assembly and fix a wiring issue as one fan was not running
>>
>> A few days ago I did pull the sensor with a view to fitting a new one, but
>> the new one was out of spec, so I refitted the original and it's run
>> perfectly since then until this morning
>>
>> What else I should look at if I can't find a problem with the sensor?
>>
>> I have a big trip planned for tomorrow for my gf's birthday, so I'm feeling
>> very nervous right now!
>>
>> Paul
>> 87 S4 Manual