Trigger Points, chasing my tail Options

[tdgray]

I am still chasing down my FI problems. Got a new realy board seems to have solved the fuel pump problem. when I switch the ignition on now I here the FP for a brief moment as I think it supposed to do. I have reconnected the vaccum hoses (dumb ass PO unhooked every hose (IMG:style_emoticons/default/fighting19.gif) ). I am sure the fuel is being delivered to the pressure reg and beyond, still need to measure pressure. Alas I am getting no fuel into the cylinders. Crank it for 15-30 seconds and pull a plug and it is dry. Tried 2 diff FI brains and nothing ( I am pretty sure that the new one should be operational). Sorry this is a long explanation. Tonight I want to check the trigger points. As I understand it they signal the control unit to dispense fuel RIGHT? I am wondering if they are stuck closed or bad or what. I don't know I am just chasing my tail. (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/headbang.gif)

Am I going about this all wrong?

Thanks Guys,

Todd

ps. Thanks Dave Darling the help you gave on my last post helped to diagnose the Relay Board problem real fast. new one is in and working (IMG:style_emoticons/default/clap56.gif)

[ArtechnikA]

...I am getting no fuel into the cylinders. ... Tonight I want to check the trigger points. As I understand it they signal the control unit to dispense fuel RIGHT?

i shouldn't be trying to help with /4 FI problems but i will... somewhere you'll find a reference to Brad Anders' page on D-Jet principles of operation and troubleshooting; i don't have the link but i'm sure it won't be long before someone adds it to this thread. it's excellent.

yes, trigger points signal when to inject fuel. if they're bad, no regular injection...

things to try: 1: go to the engine with the ignition on and manually work the throttle. you should hear a series of clicks (10?) as the throttle-position sensor does its enrichment thing. do that enough times and there -will- be fuel in the cylinders -if- there is pressurised fuel in the loop.

you -can- drive the car with no TPS so if this doesn't work all is not lost (although it'll be a pig under acceleration and you''ll want to deal with it...)

2) if you make the ThermoTime Switch think it's *REALLY* cold (< 40F, i believe) the aux cold-start injector should operate while cranking - again - if there is fuel in the loop.

good luck !