trying to start .... please could someone help?

[dgoodhue]

Re: trying to start .... please could someone help?

Further to my last. I checked if the injectors were all shorted to ground thus staying open - the ECM is trying to pulse them so something else is making the damn truck run so badly. This was tested on a multi meter as I am waiting for my NOID lights. I doubt they will reveal anything surprising though.

Could the injectors be inverted? IE, pulsing high instead of low so the duty cycles are reversed? They should be the same z as the stockers - is that high z or low z? So maybe I have the wrong z injectors?

What multiplier in the tables do I need to change to make the injectors run lean at idle?

Stock are high impedance, they should read around 16 Ohms on a multimeter.

 

[Quickstop [UK]]

Re: trying to start .... please could someone help?

well - I get 14v across the injector harness the whole time, which means the blu/grn are grounded somehow...

I posted a thread in the tuning/emissions forum but this appears to be causing it.

injector diagnosis