eke_zetec_RWD Posted November 8, 2008 Share Posted November 8, 2008 hey there, time to pick your brains. i have a link g3 in a mk1 escort running a ford pinto sierra motor thats is turbod and injected ect. its using a sierra electronic ignition dizzi for the crank pick up. from what i can tell for one 360deg turn of crank the ecu will recieve to signals, altough simon says to set link on 1 tooth per tdc. i would have thought it would be set to 2 teeth per tdc but i cant see that option. i have had it running fairly sweet on this ecu but on thurs i took it to dyno and wont start, everything on scope is clean and consistant. the spark is strong and it apairs to be firing on the marks, it may be firing too often? it will nearly start then it kicks back and runs backwards with exhaust coming out the inlet of the turbo for a few seconds and then may kick forwards again. i cant see this being healthy for the crank ect. any thoughts on it? from what i can tell its got twice as many input signals as the link is looking for and then firing when the rotor is fired half way between the lead points and at random firing the most easy plug it can jump to........... any thoughts will be great..... Quote Link to comment Share on other sites More sharing options...
sholdowa Posted November 8, 2008 Share Posted November 8, 2008 way advanced??? Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted November 8, 2008 Author Share Posted November 8, 2008 no, wel it is when licking back obvisously. Quote Link to comment Share on other sites More sharing options...
Burntrubber Posted November 8, 2008 Share Posted November 8, 2008 Might be a fried coil does the ecu drive the coil or is it fuel only? if it does might have to look at dwell settings bad settings can make the coil discharge erratictly. Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted November 8, 2008 Author Share Posted November 8, 2008 iv checked the coil on the scope, its in good condition. charges fully in 3 ms and will hold charge for 20ms without self colapising Quote Link to comment Share on other sites More sharing options...
Burntrubber Posted November 9, 2008 Share Posted November 9, 2008 Do a visual test of the spark put a plug in one of the leads and crank it over see if the spark is normal or way to long. I had to replace a coil when setting up my ecu it was doing exacty what your describing because of how long the coil was discharging for. Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted November 9, 2008 Author Share Posted November 9, 2008 all seems normal. i reken the link shudnt be set to 1 trig per tdc as the ecu gets 2 pulses per 360deg crank turn. shud be 2 pulses per tdc but no such option......... Quote Link to comment Share on other sites More sharing options...
BobbyBreeze Posted November 9, 2008 Share Posted November 9, 2008 You are triggering off the electronic dizzy? Sounds like its right - two triggers per 360degrees is what you would expect running individual coils. (dizzy runs at half engine speed, so every 720degrees on crank = 4 triggers) Unless you are running wasted spark? As far as i am aware, triggering once per revolution only works with wasted spark, as the ecu doesn't know which pair of cylinders are firing. This is when you run a crank wheel sensor etc. Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted November 9, 2008 Author Share Posted November 9, 2008 its using one coil and then the dizzi still distributes the spark around. the ecu doesent need to know what clyinder its on, just when tdc is and how many clyinders there is and weather it is 4 or 2 stroke.......... Quote Link to comment Share on other sites More sharing options...
forced Posted November 9, 2008 Share Posted November 9, 2008 A timing light would make things a lot easier. Steve Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted November 9, 2008 Author Share Posted November 9, 2008 A timing light would make things a lot easier.Steve ha bro u think i dnt have a timing light! Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted December 7, 2008 Author Share Posted December 7, 2008 ok so i have used the coil i usd to use with the crossflow engine and remounted it further forward and around 400mm further away from the ecu. seems to run fine now so fingers crossed it will perform on the dyno this week Quote Link to comment Share on other sites More sharing options...
d.p.n.s Posted December 7, 2008 Share Posted December 7, 2008 good luck with her mate Quote Link to comment Share on other sites More sharing options...
Guest vvega Posted December 7, 2008 Share Posted December 7, 2008 good luck with her mate good luck with her mate good luck with her mate Quote Link to comment Share on other sites More sharing options...
Brock-Lee Posted December 7, 2008 Share Posted December 7, 2008 good luck with her mate +1 Quote Link to comment Share on other sites More sharing options...
forced Posted December 7, 2008 Share Posted December 7, 2008 You didn't hook up the vac advance to the wrong place?? Steve Quote Link to comment Share on other sites More sharing options...
Guest vvega Posted December 7, 2008 Share Posted December 7, 2008 You didn't hook up the vac advance to the wrong place??Steve haha hahhaa hahahahahahha hah ahahah ahahahahhahahahahahhahahahhahahahahahha omfg rotflmao best post ever Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted December 8, 2008 Author Share Posted December 8, 2008 You didn't hook up the vac advance to the wrong place??Steve haha vac advance! r u fucked in the head? Quote Link to comment Share on other sites More sharing options...
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