olij Posted April 26, 2009 Share Posted April 26, 2009 some help please! refitting my k series with jenveys and emerald and it won't start. i am getting spark, the fuel pump primes, fuel at the fuel rail but no fuel comes out of the injectors on cranking.... it cranks over fine just doesn't fire (obviously!). how do i toubleshoot no fuel coming out of the injectors? is this the correct thing to check? connect one end of a voltmeter to the injector plug, earth the other end and i get 12vs... its a new (to me) engine replacing an old 1800 supersport, so the emerald map is new... any suggestions on what to check? Link to comment Share on other sites More sharing options...
oilyhands Posted April 26, 2009 Share Posted April 26, 2009 Sounds to me like the ECU doesnt know the engine is cranking, it could be the crank sensor trigger pattern.. does the light on the ECU change to green when you crank or does it stay red? Try connecting your laptop and go to the live adjustments page, then crank and see if the software sees the cranking RPM. Oily Link to comment Share on other sites More sharing options...
olij Posted April 26, 2009 Author Share Posted April 26, 2009 Hi Oily i think it's crank sensing ok - 290 ish rpm on live adj screen with a green light when cranking... just no flippin fuel Link to comment Share on other sites More sharing options...
Rob Walker Posted April 26, 2009 Share Posted April 26, 2009 Have you remembered to connect the injector sub loom to the engine loom? Edited by - Rob Walker on 26 Apr 2009 16:35:40 Link to comment Share on other sites More sharing options...
olij Posted April 26, 2009 Author Share Posted April 26, 2009 thanks - yes, getting voltage across the injector plugs Link to comment Share on other sites More sharing options...
olij Posted April 26, 2009 Author Share Posted April 26, 2009 so... i get voltage at injector plugs there is a green light at emerald so cps ok there is fuel at the fuel rail the fuel pump primes there is spark at the plugs reset the throttle pot any other suggestions as to what to check would be very welcome Edited by - olij on 26 Apr 2009 20:22:53 Link to comment Share on other sites More sharing options...
Stationary M25 Traveller Posted April 26, 2009 Share Posted April 26, 2009 Enough fuel in tank to keep the system running ? Link to comment Share on other sites More sharing options...
olij Posted April 26, 2009 Author Share Posted April 26, 2009 27 litres of fuel in the tank Link to comment Share on other sites More sharing options...
oilyhands Posted April 26, 2009 Share Posted April 26, 2009 Check continuity of the injector driver connections from pins 23 and 24 to the appropriate pins in the injector harness, check the injector output type (grouped, batched, sequential) in the ECU config setup. Oily Link to comment Share on other sites More sharing options...
rj Posted April 26, 2009 Share Posted April 26, 2009 throttle pot signal? Link to comment Share on other sites More sharing options...
Willie. Posted April 26, 2009 Share Posted April 26, 2009 Does the ECU have a good enough earth? What is the voltage on cranking? I think I've heard of some ECUs not liking low voltage. Are you getting fuel pressure at the fuel rail? Willie Edited by - Opposite Lock on 26 Apr 2009 23:03:04 Link to comment Share on other sites More sharing options...
olij Posted April 26, 2009 Author Share Posted April 26, 2009 ...the power of blatchat 😬 i had wired up the injectors to run paired from pins 1 and 26 when i put in my original k 1800 4 ish years ago. it ran fine like that. tonight i changed the injector loom to use pins 23 and 24 instead and hey presto - the injectors now inject not yet sure why this would be the case (same ecu as before).. guess it's the injector setting in the software but not sure tbh... will investigate some other time - got a drive shaft to repair thanks for the help 😶🌫️ Edited by - olij on 26 Apr 2009 23:12:52 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now