owen g60 10 Posted July 31, 2011 Hi guys, I have just replaced the temp sensor (blue one) after having cold idle issues... now after running for about 20 mins the engine will cut out and not restart for about an hour. Once it has cut out the engine will turn.. if put in gear and turned the car will move forward. Temperature wise the car is getting no hotter than usual... about 95-102 degrees according to the MFA. Any suggestions Quote Share this post Link to post Share on other sites
dannyboy 0 Posted July 31, 2011 is the engine stalling when fan comes on or does it sound like its running out of fuel? Quote Share this post Link to post Share on other sites
owen g60 10 Posted July 31, 2011 it is an instant cut out... no stuttering like it is fuel (fuel pump changed last week due to a perished o ring) i am suspecting it to be a hall sender issue as when it is let to cool for an hour or so it will then restart... but has started to do it since the temp sensor was changed. ---------- Post added at 10:49 AM ---------- Previous post was at 10:22 AM ---------- it may well be when the fan comes on as it has been when slowing down that i have cut out and not been able to restart ---------- Post added at 10:51 AM ---------- Previous post was at 10:49 AM ---------- it may well be when the fan comes on as it has been when slowing down that i have cut out and not been able to restart Quote Share this post Link to post Share on other sites
dannyboy 0 Posted July 31, 2011 it might be the idle screw is set bit too low or o-ring perished that when the fan kicks in the engine will stall. Is the isv clean?give it bit of a clean might help. If it stalls again,disconnect the connector for the injector rail,turn the engine over for a second or two.reconnect the injector rail.then try start Quote Share this post Link to post Share on other sites
owen g60 10 Posted July 31, 2011 Still no joy... Fan doesn't seem to cut in... Will see how it performs with isv disconnected Quote Share this post Link to post Share on other sites
dannyboy 0 Posted July 31, 2011 DONT!!!!!! whatever you do dont unplug the Isv while engine is running.It burns out the Isv driver in the ecu and it'll never idle right again Quote Share this post Link to post Share on other sites
owen g60 10 Posted July 31, 2011 It stopped running again before I got round to it. It's a non runner at the moment no spark from the plugs. Have cleaned the distributor cap and rotor arm. Voltage pulses to coil when turned over. Am suspecting hall sensor, gonna let garage look at it as I'm lost Quote Share this post Link to post Share on other sites
dannyboy 0 Posted July 31, 2011 if the voltage pulses then the hall sender should be working.You can confirm this. To test hall sender gently remove rubber cover on the connector to the dizzy to expose terminals but leave connector connected.put a LED across the center and outside wire.The LED will flicker when you turn engine over.If it doesnt your hall sender is busted.You can use this to test almost any dizzy fitted with hall sender Quote Share this post Link to post Share on other sites
owen g60 10 Posted August 2, 2011 latest news from the garage... Hall sensor has input and output from ecu. ignition circuit ok ecu earth ok ecu relay ok fuse 15 (ISV, Deceleration fuel cut off, electronic ignition ok) still looking but as yet no spark Quote Share this post Link to post Share on other sites
dannyboy 0 Posted August 2, 2011 right buddy,check the black/red wire to the coil,its the trigger wire for the coil to discharge Quote Share this post Link to post Share on other sites
owen g60 10 Posted August 2, 2011 havent got the car in front of me right now... if i remember correctly i have a green wire going to -ve on coil and a black wire going to +ve... was about 12V when i checked it... also appeared to drop to 10v whan cranked Quote Share this post Link to post Share on other sites
dannyboy 0 Posted August 2, 2011 voltage will drop as battery uses all its power for turning starter. There should be three wires going to the coil-as you said black wire +ve,Green wire -ve, and trigger wire in the middle Quote Share this post Link to post Share on other sites
owen g60 10 Posted August 2, 2011 defo no trigger wire... only 2 terminals on the coil.... 3 pin one that the black goes to... 2 pin one that the green goes to... and output to the distributor Quote Share this post Link to post Share on other sites
dannyboy 0 Posted August 2, 2011 what year is your g60? mines a 1990 and mine is a three wire coil. Quote Share this post Link to post Share on other sites
dannyboy 0 Posted August 2, 2011 aaaahhhh... now i see.your coil is cubed shaped am i correct? mines the older round can shaped one.No prob thought.theyre pretty much the same anyway Quote Share this post Link to post Share on other sites
owen g60 10 Posted August 2, 2011 nope mines a round one where should the red trigger come from?? Quote Share this post Link to post Share on other sites
dannyboy 0 Posted August 2, 2011 ok just to confirm green+ black,red are are part of the same terminal,noticed when i took the king lead off Quote Share this post Link to post Share on other sites
owen g60 10 Posted August 2, 2011 jackpot thats what is missing... i have same coil as you... any idea where the red/black comes from?? Quote Share this post Link to post Share on other sites
dannyboy 0 Posted August 2, 2011 two seconds ill find out ---------- Post added at 07:58 PM ---------- Previous post was at 07:38 PM ---------- bingo found it,your electrics are same as 1990 model. The Red/black goes back to the fusebox,connection G1 pin 12. ---------- Post added at 08:00 PM ---------- Previous post was at 07:58 PM ---------- Funny enough,the digifant relay uses that same track to power the digi unit...... Quote Share this post Link to post Share on other sites
owen g60 10 Posted August 2, 2011 ah ok digifant powered fine.... will suggest that the guy looks doen the back of the engine for a red/black wire with crimp possibly still attached. would explain why the problem was intermittent... probably as the crimp worked its way out of the housing Quote Share this post Link to post Share on other sites
dannyboy 0 Posted August 2, 2011 ill be on tomorrow,give me a shout if you need more help or get it sorted. its 22:05 here in germany and have to be up early at 6am. Quote Share this post Link to post Share on other sites
owen g60 10 Posted August 2, 2011 cheers... hope this sorts my electrical gremlins Quote Share this post Link to post Share on other sites
owen g60 10 Posted August 3, 2011 What engine code did you get that from?? I haven't got the bentley diagram to hand at the moment but a PG engine doesn't need the trigger wire Quote Share this post Link to post Share on other sites
dannyboy 0 Posted August 3, 2011 The engine code is PG.Mines a 1990,an earlier corrado so wiring is a little bit different. just had a look,1991-1992 wiring changed and on the diagram only has two wires,digifant green to terminal 1 and black to terminal 15 Have you checked the coil itself? pull king-lead off dizzy,get a spare sparkplug,earth it to the engine and check for spark when cranking on that topic,is the engine earth good? if its busted it might be causing your probs with weak spark Quote Share this post Link to post Share on other sites
