Oh feck! The engine management light has come on again on the way to work along with the "Depollution system faulty" message. I had some other lights come on which disappeared as soon as I stopped the engine and restarted it. I took the motorway route to give it good blast. When I set off home the light and message were still showing so I came home via the motorway to give it another blast but it made no difference. I've been checking the C4 forum and the problem can be caused by a clogged EGR valve (highly likely on a diesel engine with just shy of 120,000 miles on the clock and of unknown service history prior to my ownership) so on my way home I bought a can of Wynns diesel EGR cleaner. It thought it would be worth a try before I do any actual spannering and there were plenty of good reviews on the Halfords website. When I got home I undid the air cleaner lid to get access to the intake (as if I was changing the air filter). The joint for the intake hose is past the MAF sensor and I didn't want to bypass it as the stuff will be fine with the MAF. I started the engine and the engine management light went out (bloody typical!). I'd already bought the stuff and this it the 3rd time the engine management light has come on so the problem isn't going to go away. I followed the instructions on the tin. You give it a 1 second burst, the revs go up, the engine makes a knocking sound (this is normal when you do this), wait until the engine settles back to normal idling speed and repeat until it is used up. Once the stuff has been used up you let it idle for 5 minutes, switch the engine off, button everything up and take if for a 5-10km drive which is either side of 5 miles (5 miles is about 8km). I also cleared all the fault codes which have been triggered during this treatment. I've been down to the local Asda and it is running fine. They've reduced petrol and diesel by 2p a litre so I've filled up with diesel (the gauge was reading a notch under half full). Some of the reviewers on the Halfords website reported an increase in fuel economy (I know that this is very subjective) so I'll see if my fuel economy improves as well. I've been averaging just under 40mpg which is better than petrol for the same type of driving.
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Toledo Man
West Yorkshire Area Organiser & forum moderator
Meetings take place on the first Wednesday of the month at 8.00pm at The Old Brickworks, Wakefield Road, Drighlington, Bradford, BD11 1EA
1972 Dolomite 1850 auto (NYE 751L - Now for sale)
2003 Volvo XC90 D5 SE (PX53 OVZ - The daily driver)
2009 Mercedes-Benz W204 C200 CDI Sport (BJ58 NCV - The 2nd car)
1991 Toyota Celica GT (J481 ONB - another project car)
Former stable of SAY 414M (1974 Toledo), GRH 244D (1966 1300fwd), CDB 324L (1973 1500fwd), GGN 573J (1971 1500fwd), DCP 625S (1977 Dolomite 1300) & LCG 367N (1975 Dolomite Sprint) plus 5 Acclaims and that's just the Triumphs!
Check my blog at
http://triumphtoledo.blogspot.com
My
YouTube Channel with a bit of Dolomite content.
"There is only one way to avoid criticsm: Do nothing, say nothing and BE nothing." Aristotle