About two months ago my old fuel tank had a massive leak from the fuel pickup gasket at the top, the studs were so corroded they all broke which resulted in new tank (second hand off ebay). I get new tank hook it up and truck runs fine for about 3 days. After about 3 days I get Eml come on and the revs will not go past 1500, if I put my foot right in it smoke comes out the back and it runs fine again. This problem mostly occurs when slowing down to a junction.
I tried a few fuel filter, did not stop the problem, so I dropped tank and flushed it out (plenty of rubbish in there) fitted new fuel pick up pipes, new lift pump (turned out old one was faulty and barley sucked atall), cut out and old corroded return line. After all this I fired the truck up, bled the air and took it oit for a drive to which I found no issues untill the best morning when it happened again. So last night I fitted another new fuel filter bled the air and drive it, again no issues untill this morning's drive to work.
The truck proved to be a little hard to start this morning and I needed to pump the lift pump a few times before hard. My next step will be to fit a check valve to eliminate any fuel run back.
Any ideas if this could be non fuel related or am I on the right track?
the spare plug is for a heated fule filter head which uk trucks do not have, try changing the boost sensor
Thanks.As per post,have already changed Boost sensor.Ill try other suggestions
The boost sensor is attached to the intercooler frame, top middle of the bulkhead, you have changed the turbo control pressure sensor. These are often described incorrectly as boost sensors on ebay etc.