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kelvinp · Apr 16th, 2018, 18:15

Does anyone have a copy of the pin outs for the LH2.4 injection system on a 1990 740?

I have noticed a couple of times, that the idle sits too high - just over 1100RPM, I have checked the diagnostics and it records a 3-1-1 fault codes which appears to be speedometer signal missing so wonder if this is connected?

I have a copy of the LH 2.4 for the B230F engine on a 240 and this refers to a blue wire to pin 34 is this the same on the 2.4 fitted to the 740?

The only thing I have done recently is remove the dashboard to fit new panel lamps, I can find a blue wire and removed and refitted the plug to see if this cures it but is this the wire the manual refers to.

Thanks in advance.

Apr 16th, 2018, 18:15	#1
kelvinp Member Last Online: Mar 14th, 2024 22:01 Join Date: May 2013 Location: chatham	B200F LH2.4 pin outs Does anyone have a copy of the pin outs for the LH2.4 injection system on a 1990 740? I have noticed a couple of times, that the idle sits too high - just over 1100RPM, I have checked the diagnostics and it records a 3-1-1 fault codes which appears to be speedometer signal missing so wonder if this is connected? I have a copy of the LH 2.4 for the B230F engine on a 240 and this refers to a blue wire to pin 34 is this the same on the 2.4 fitted to the 740? The only thing I have done recently is remove the dashboard to fit new panel lamps, I can find a blue wire and removed and refitted the plug to see if this cures it but is this the wire the manual refers to. Thanks in advance.