cloudder Posted April 25, 2010 Share Posted April 25, 2010 Guys, Swapped out the plugs, coil and also did the fuel filter (as I had a new one) about a month ago and this seemed to cure the miss-fire. Due to being ill, I didn't get a chance to use the car for more than a few miles and things were 100% good to me. I even popped into my local garage (about 12 miles away as I live in the country) and they quickly did an emmisions test on it and all things are good. Anyway, came to drive the car today. Started fine, drove about 6 miles, perfect. Orange low fuel light comes on and I am already suspisious that the car is more thursty than usual perhaps. Within a mile, I kicked the auto down to pass another car, the engine stumbled big time and the main warning triangle comes on. Off throttle light goes off but for the next mile the car keeps going from normal, to miss-fire, sometimes to stalled! Luckly my parents house was now within about 1/4 mile so went there. In the drive I could get the engine to about 3900rpm sounding OK, but then a big missfire. Bugger. Also I noted that when coming off throttle, when the idle dropped below 1000rpm, the speedo shot up to about 30mph and then straight back to 0 ?!?!? Left her there over night. Went back this morning, so the car was cold, with 10 litres of unleaded. Fired her up straight away on the key, but it idled at 800rpm- no cold start sequence of 1500, 1200-1000 down to 750rpm, plus top speed is crawling pace? Any ideas??? HELP!!! Link to comment Share on other sites More sharing options...
DaveR Posted April 25, 2010 Share Posted April 25, 2010 Sounds weird... Were the plugs the correct grade? Is everything tight and fitted correctly? I'd check the details that may have been missed and double-check on workmanship if it were me. Link to comment Share on other sites More sharing options...
Supranature Posted April 25, 2010 Share Posted April 25, 2010 Anyone offering an answer please read here first http://www.mkivsupra.net/vbb/showthread.php?t=209003 Hope you can sort this as it sounds a right PITA Link to comment Share on other sites More sharing options...
secondjump Posted April 25, 2010 Share Posted April 25, 2010 You will probably get a code 42 when you run a diagnostic check If you do it's likely to be caused by a dry joint/ or a corrupt speed signal in your odometer (there is an easy bypass fix for a corrupt odo which is well documented on here ). If that does not solve the issue it might be worth checking if the speed signal wired has been chopped into. Link to comment Share on other sites More sharing options...
cloudder Posted April 26, 2010 Author Share Posted April 26, 2010 Thanks Secondjump, I'll attampt a search here to see what I am up against. On another subject- what exactly does the Ignitor do? Is there a single diagram of where all the sensors are fitted on the N/A motor? Cheers Link to comment Share on other sites More sharing options...
cloudder Posted April 26, 2010 Author Share Posted April 26, 2010 Just a thought- if the speed correction unit (or what ever it is that was fitted to go from kph to mph) could be playing up would it be simple to remove it temporarily just to eliminate it? Is it usually under the dash?? Link to comment Share on other sites More sharing options...
Ian C Posted April 26, 2010 Share Posted April 26, 2010 You already have a thread for this -Ian Link to comment Share on other sites More sharing options...
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