rogerball0
UK Spec 2002 LWB 311 CDI
I can't find one in my engine bay, should be attached to the airbox from pictures i found online but theres nothing there, its a UK van so dunno if that has a bearing on things?
Cheers Midwest just trying to get to the bottom of the rough idle problem i still have, got told to check the MAF sensor. Didn't think it had one as the exhaust is straight through from the manifold with no electro-mechanical ****ery attached so was pretty sure it didn't.Your model has no MAF. It probably has no egr either.
Hi Mid west i was underneath the van yesterday and realised the fuel tap i'd put in for a heater i intend fitting in the back had fuel in it although nothing is connected up its just coiled up with the end (i thought) sealed up but i could see diesel had leaked from this pipe & had taken some of the waxoil off the chassis so i'm wondering if that might be enough to contribute to the rough idle problem i still have?Water pumps are generally suggested every 100k miles or so. Though just pulleys and belt don't require taking the radiator off.
Rough idle on these engines tends to be one of two causes. Air infiltration (check for air bubbles in the clear fuel line section). Or bad injectors. Injectors can be removed and tested by a Bosch shop.
Sometimes the MAP sensor or intake air sensor can go wonky. That can be checked with a good scan tool.
Roger,Hi Mid west i was underneath the van yesterday and realised the fuel tap i'd put in for a heater i intend fitting in the back had fuel in it although nothing is connected up its just coiled up with the end (i thought) sealed up but i could see diesel had leaked from this pipe & had taken some of the waxoil off the chassis so i'm wondering if that might be enough to contribute to the rough idle problem i still have?
Hi KeithRoger,
Is this fuel tap 'T'd into the existing engine fuel lines or drilled into the tank?
If it is 'T'd into the existing lines than you could be sucking air in through it and causing your issues. Can you plug it effectively as a test?
Keith.
Never thought of that, what a great idea! I shall fit a HSS drill bit into the hose tomorrow and report back.Hi Roger,
Cheers for the update, as you have now found out screws don't work to plug hoses! The Diesel will migrate up the screw threads and eventually leak.
You need either a screw with a plain shank or a piece of plain rod, something like the shank of a twist drill works well!
Keith.
Cheers GOVYeah I was struggling to work out why no MAF on mine too
These ones are a "speed density" injection system, its more rugged and less prone to fail by all accounts but does mean computer gets no feedback on the amount of fuel in the cylinders..it just fires the injectors for a set time and assumes they work
this was the reason for my rough idle, 2 cyinders were adding extra fuel
You likely wont have the MAF, EGR as mentioned, also O2 sensor and Catalytic convertor which, makes the exhaust cheap to replace : )
You likely wont have the MAF, EGR as mentioned, also O2 sensor and Catalytic convertor which, makes the exhaust cheap to replace : )
Totally agree with both you guys, mine is now for keeps!Cheers GOV
Thats one of ticks in the 'keep van' column, the fact our vans have none of the electronic fukery the later models have...