Service Mode Code 60 - question

[mep12345]

When you remove the electrical connection from the throttle pot to put the car into code 60 for setting of the timing what does your idle speed do?

Also when connected and at Idle what does you timing show with regards to degrees advance or retard? I know you can't set the base timing like this but still trying to understand my idle issue.

My car does the following:

Idle is high when all connected at around 2000rpm with the timing showing about 3 degree advance at this idle speed.

Disconnect the throttle pot and idle speed increase to around 2500rpm and timing shows 12 degrees advance.

Car performs really well under load etc and sometimes the idle settles down and drops to around 1200rpm but never to the desired 850-900 rpm.

Neither of my ISCV and throttle pots affect this, wiggle tests on all wiring has no effect and the ISCVs do the "2 moves" thing on ignition on. Disconnect the ISCV electrics and the engine immediately dies, as it does when both AFM are disconnected.

Thanks

Mark

[Gerald-TVR]

I'm not sure disconnecting the TP will put the car into mode 60, BUT you can do that with the Star tester

[mep12345]

Gerald-TVR said:

I'm not sure disconnecting the TP will put the car into mode 60, BUT you can do that with the Star tester

This is the shortcut the car mechanics article tells you to do as an alternative to the star tester, hence the reason I have used this route as I have a code reader but not a star tester

[Gerald-TVR]

mep12345 said:

but not a star tester

I passed my Star Tester to phillpot to make it available to the S community, why not see if its available?

[mep12345]

Gerald-TVR said:

I passed my Star Tester to phillpot to make it available to the S community, why not see if its available?

Have PM'd him as have exhausted my expertise and equipment now.

[Barkychoc]

A guess but have you tried disconnecting injectors one at a time incase one of them isn't closing properly. So each time you disconnect an injector revs drop, if there is a problem one revs drop much more.

[phillpot]

mep12345 said:

Gerald-TVR said:

I passed my Star Tester to phillpot to make it available to the S community, why not see if its available?

Have PM'd him as have exhausted my expertise and equipment now.

Let me have your address Mark.

[mep12345]

phillpot said:

Let me have your address Mark.

Mike,

YHM

Thanks