pj027235 10 Posted December 18, 2015 The cold start valve on my 2.0l 16v has suddenly stopped working. Has anyone managed to repair one of these or got a spare one lying around? Phil. Quote Share this post Link to post Share on other sites
MZpog 10 Posted December 18, 2015 You sure it's the valve? I thought mine wasn't working as sometimes she needed foot to board cranking to fire up....when I checked, it was working. Quote Share this post Link to post Share on other sites
pj027235 10 Posted December 18, 2015 Well...I unbolted it from the manifold, reconnected the fuel line and electrical plug, pointed it into a large jam-jar and turned on the ignition. The fuel pump 'primes' but nothing from the valve? It will start like yours....foot right down and 10 seconds of cranking, but before now this wasn't necessary and it used to start immediately... Quote Share this post Link to post Share on other sites
seanl82 23 Posted December 18, 2015 Do you have power to the connector? Seems strange how one day it was fine then the next it wouldn't start at all. Usually they just gum up and get progressively worse rather than just fine one minute dead the next. Quote Share this post Link to post Share on other sites
pj027235 10 Posted December 18, 2015 Yes got power to the connector, and the resistance across the valve pins is around 10 ohms, so no open circuit there. I am going to give it a soak in carb cleaner tomorrow and will update.... Quote Share this post Link to post Share on other sites
pj027235 10 Posted December 19, 2015 Problem found. It's a power supply issue, only getting 11.7v to the valve, battery voltage 12.25. When connected straight across the battery it works fine. Quote Share this post Link to post Share on other sites
MZpog 10 Posted December 21, 2015 Interesting, I must try mine if it plays up again. Quote Share this post Link to post Share on other sites
pj027235 10 Posted December 21, 2015 Traced to a badly crimped red wire right at the battery +ve terminal. Quote Share this post Link to post Share on other sites
jekel 10 Posted December 21, 2015 Sure I've got one for a 2.8i Capri in garage and think they might be the same. On a couple of 2.8i Colgones by way, hooked that up not just as a cold start valve but as a sort of 7th injector at full or nearly full throttle, worked a treat, not sure if possible on a Corrado, simple electrics on a Capri, and nicely placed to spray evenly across intake chamber, but maybe someone might, I've never looked at a 2.0 close up but suspect layout is similar. Quote Share this post Link to post Share on other sites
pj027235 10 Posted December 21, 2015 (edited) I spoke too soon! Yes there was a badly crimped wire which simply pulled apart, but the cold start feed still not getting full battery voltage....more head scratching. The 2.0l 16v 9a has a full throttle enrichment switch which comes in at around 90% throttle, so no real need for 'any more' Phil Edited December 21, 2015 by pj027235 Quote Share this post Link to post Share on other sites
jekel 10 Posted December 22, 2015 I spoke too soon! Yes there was a badly crimped wire which simply pulled apart, but the cold start feed still not getting full battery voltage....more head scratching. The 2.0l 16v 9a has a full throttle enrichment switch which comes in at around 90% throttle, so no real need for 'any more' Phil They probably stole that idea looking at one of my old Capri's I could probs sue. Tell ya what might make a diff. slightly off subject, prob. got a 3.0 bar fuel regulator in it, only the VR6's, turbo'd Audi 1.8's and few performance big engined Audi's use the 4.0 bar, sold a couple of 4.0 bars to Golf lads as had few spare, straight swap, and they were singing praises of improvement, prob. more of an improvement if got intake kit, decatted etc., which think they did, but they were well impressed. Quote Share this post Link to post Share on other sites
