R32 Electrical

[david69]

Has anyone ever experienced your r32 gtst sometimes keeps running with ignition off and timer totally off as well.sometimes i turn key off and it will run bit rough until i stab the throttle, then it shuts down straight away..could it be the turbo timer even though i dont use it and keep it off..any ides..cheers all

[*LOACH*]

Could be dieseling. Unusual in fuel injected, especially turbocharged (lower compression), engines. Check your idle speed and air/fuel ratio.

[david69]

sometimes it runs as if you havent even turned it off by the ignition key.other times it rough for 5 seconds then shuts off.

[*LOACH*]

Let your engine idle in neutral (ignition on) and check the RPM. Is it somewhere around 600-800RPM when warm?

Did you change spark plugs and then notice the problem started? If so try changing to a different rating of spark plugs.

Fuel injected engines don't usually diesel because once the ignition is off the fuel injectors stop supplying fuel. However if you have a sticky injector it might be allowing fuel in after the ignition is cut. In addition the sticky injector could have caused a build up of carbon in your cylinder which retains heat and can cause the engine to diesel. If the spark plugs and idle RPM are ok you might be best off getting it checked on a dyno as they will measure air/fuel ratios.

[*LOACH*]

You can try disconnecting the turbo timer too (the rough running makes me think it isn't the timer but it is worth a try). Depending on the timer/installation it can be as easy as removing the connections to the timer. However some timers are wired in series with the ignition so the car won't run without bridging/reconnecting certain wires. Here is a link on removing turbo timers:

http://www.skylinesa...nspection-pics/

Edited January 14, 2013 by *LOACH*

[david69]

thanks heaps loach. ill check it out.

[*LOACH*]

No worries mate, good luck with it.