Shandangles Posted August 5, 2015 Share Posted August 5, 2015 hi all, I have a silvertop 20v in a ae85 that im trying to sell. I was going when i brought it, i have since ripped the engine out to swap front x member and suspension over then put the engine back in (this was about 8 months ago). (now) thing is is doesn't spark anymore, there is power to the igniter and coil and all wiring is continuous to the ecu I have tried different coil, igniter and dizzy to no avail I installed a SQ rwd water line system and rooted the o2 sensor while removing the engine, apart from that its all as it was. I cant see any wires / earths off anywhere im lost any ideas???? Cheers Shannon Quote Link to comment Share on other sites More sharing options...
Bangbug Posted August 5, 2015 Share Posted August 5, 2015 Injectors firing? Actually, are they from the same sensor? I'd imagine so... I'd start there anyway. Bin all of it. Get http://www.sq-engineering.com/upgrade-parts/engine/4age-20v/20v-4age-distributor-kit.html ooooh baby. Quote Link to comment Share on other sites More sharing options...
Shandangles Posted August 5, 2015 Author Share Posted August 5, 2015 its def getting fuel, can smell it. already has the firewall cut to clear dizzy so its all good / im trying to get ti going again to sell so dont want to spend money on it really Quote Link to comment Share on other sites More sharing options...
Bangbug Posted August 5, 2015 Share Posted August 5, 2015 Check the ground of your igniter?Since you've moved stuff about. Quote Link to comment Share on other sites More sharing options...
Frosty Posted August 5, 2015 Share Posted August 5, 2015 If you've had the dissy out it could be as simple as the leads are 180 deg out or the rotor is damaged. Quote Link to comment Share on other sites More sharing options...
Bangbug Posted August 5, 2015 Share Posted August 5, 2015 Stolen Image Shows the ground from the Igniter case I was referring to. Quote Link to comment Share on other sites More sharing options...
Bangbug Posted August 5, 2015 Share Posted August 5, 2015 Well ground OF the ignitor case Quote Link to comment Share on other sites More sharing options...
Shandangles Posted August 6, 2015 Author Share Posted August 6, 2015 ran a new ground from ignitor and coil to the -ve terminal , still no spark. i measured 10v between the 3 ecu earths (4 brown wires on a circular crimp (1 from the o2 sensor)) and the -ve battery terminal which seems pretty odd..... Quote Link to comment Share on other sites More sharing options...
downtrail Posted August 6, 2015 Share Posted August 6, 2015 Check the main earth strap from chassis to motor. 2 Quote Link to comment Share on other sites More sharing options...
Bangbug Posted August 6, 2015 Share Posted August 6, 2015 You ran what to where? Do you now have a constant -'ve to the coil and an ignition switched +'ve?Is your coil now very warm? Some pictures may be needed. If it's like the stolen drawing then the body of the igniter IS the earth and the bracket it is on needs to be grounded. The igniter "switches to ground" And what DT said He be genius and such. Quote Link to comment Share on other sites More sharing options...
Shandangles Posted August 6, 2015 Author Share Posted August 6, 2015 i ran a ground wire from the body of the ignitor to the -ve on the battery. yeah Coil has a constant igniton switched +ve so gets warm when left on for a while, i have tried a second coil. Quote Link to comment Share on other sites More sharing options...
Bangbug Posted August 6, 2015 Share Posted August 6, 2015 Phew, that's ok Sounds like the only thing you haven't swapping is the ecu! For situations like this it's good to be able to check what is doing what and when. Can you check voltages/signals when it's cranking? Quote Link to comment Share on other sites More sharing options...
Bangbug Posted August 6, 2015 Share Posted August 6, 2015 Got the check light etc hooked up? Pull the code? Quote Link to comment Share on other sites More sharing options...
Shandangles Posted August 6, 2015 Author Share Posted August 6, 2015 unfortunately the multi meter i have here is worth about $2 to no good for that sort of thing. CEL isnt hooked up unfortunately, main engine earth is good. hopefully try another ECU tomorrow, if that doesnt sort it i donno, cheap ae85 anyone? / sit in garage for another 6 months / year till i come back over 1 Quote Link to comment Share on other sites More sharing options...
Bangbug Posted August 7, 2015 Share Posted August 7, 2015 Find your pinout diagram and hook a light up to the CEL! | feel you pain. Quote Link to comment Share on other sites More sharing options...
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