Intermittent Misfire / cutting out

[Chris_90]

As above, just recently ive the i can be driveing the car it being fine then all of a sudden it will just start to miss fire and massive drop in power and if i put the clutch in it will just cut out. Then some times it will start straight away some other times it will take ages of turning over to start. So ive replaced fuel filter and cleaned the in tank strainer but still seems the same.

Any ideas?

Im thinking pump dieing? or an injector dieing? but with it being an every now and agin problem its hard to get under bonnet to find out whats causing it

Also just to say im on 100%veg but never had any issues before (only the lump idle start up)

Need to get it fixed asap as with me useing my car for work its really getting right on my tits now, about killed clutch from trying to bump it all the time.

[Parksy87]

Sticking stop solenoid?

[Chris_90]

Sticking stop solenoid?

What can i do to test it/ free it never looked at one before

[Jonny81191]

Sticking stop solenoid?

What can i do to test it/ free it never looked at one before

Replace it with a known good one, or remove the plunger and turn it off on the pump all the time.

[Chris_90]

Sticking stop solenoid?

What can i do to test it/ free it never looked at one before

Replace it with a known good one, or remove the plunger and turn it off on the pump all the time.

Plunger? no idea i dont no much when it comes to the pump, ive just disconnected the stop solinoied then every time i touched the wires together i could hear it clicking so seems ok to me. Gona go put some diesle in it see if it helps. Starting to piss me off now just cut out on a main round about and didnt start agin for 10mins hope its not the pump, But ive never hurd of some one killing a bosch pump

[Parksy87]

Plunger is the little rubber doodah onthe end of the solenoid, take the solenoid out take the little rubber doodah off and keep it safe thing is it wont shut off with the ignition you'd have to stall it but worth a try just incase, before you do that turn your ignition on and give the feed to your solenoid a wiggle see if it clicks incase you have a dodgy connection

[Anton]

Mate how cold is it? Sounds like its veg related.

[CJ_Derv]

Id say stop solenoid buddy

[cwspellowe]

Could well be the 100% veg as that stuff gums up horribly in winter. One of the reasons I switched to straight derv over winter as I noticed veg gumming up in the fuel lines.

[Chris_90]

right ive just put 20 liters of derv in and its stoped missfireing now but still strugleing/takeing longer to start, My god it gose well now on derv suprised on the difference.

So maybe the veg has cloged up my fuel lines??

The thing is i want to run veg as its saveing me a massive amount supprised it just cost me £30 for 20 liters of derv nearly had to call an abulance as nearly had a hart attack lol Maybe a inline fuel heater?

Oh and its not really that cold well not below frezzeing i dont think

[Anton]

Bang on the money

I put 5% petrol in when its minus.

[Chris_90]

Bang on the money

I put 5% petrol in when its minus.

Think im gona run straight derv for next couple of weeks hope it sorts the starting issue out maybe put some injector cleaner/ 2 stroke though it see if it gets better

[karl1989]

id say injector

[Chris_90]

id say injector

Read rest of comments think its down to the veg

[karl1989]

i have. mine use to misfire and cut out some times when turning or just randomly ended up been a duff injector

[Chris_90]

i have. mine use to misfire and cut out some times when turning or just randomly ended up been a duff injector

But its stopped miss firing at the min unless it develops agin

[Jimbo]

I wouldn't run 100 % veg ever. Maybe 70 veg 30 derv and that would be mid summer time

[Chris_90]

I wouldn't run 100 % veg ever. Maybe 70 veg 30 derv and that would be mid summer time

Ive run 100% veg for 4 weeks and this is first issue, quite a few people run 100% with out issue

[Jenkosowls]

It has to be quite cold to clog veg up you've still got the standard thermostat housing filter which will thin the veg down so it would only be a temperiarry issue unless it was allot of small journeys I between long breaks.

[cwspellowe]

Yeah but veg that evaporates gets gunky as f*ck too, any sign of veg heating up and cooling down will also gum up. I ran 100% veg for months on end and only changed to derv because of the new blower, and it felt starved of fuel at top end.

Veg does all kinds of nasty stuff over time so fuel lines etc could well be gunked, just look at how often you need to change fuel filters when running the stuff.

I reckon a few weeks on proper diesel and you'll probably see most issues disappear

[Chris_90]

It has to be quite cold to clog veg up you've still got the standard thermostat housing filter which will thin the veg down so it would only be a temperiarry issue unless it was allot of small journeys I between long breaks.

I do stop start all night around town anything between 25-150miles a night

Yeah but veg that evaporates gets gunky as f*ck too, any sign of veg heating up and cooling down will also gum up. I ran 100% veg for months on end and only changed to derv because of the new blower, and it felt starved of fuel at top end.

Veg does all kinds of nasty stuff over time so fuel lines etc could well be gunked, just look at how often you need to change fuel filters when running the stuff.

I reckon a few weeks on proper diesel and you'll probably see most issues disappear

To be fair the issue has pretty much gone already had a couple of times were it took ages to start last night but as the night went on it started first time every time never missed once. So nice to have derv in before in a other post i did a 30-60 time i believed it wasnt possible to do a 30-70 with out a gov mod, the veg really really dose take the top end off before it struggled to go over 4k now i 4,800rpm and i can do 30-70, The speed difference is amazing before i would struggle to brake traction in first lol Now i have it skips around like mad 1st 2nd AND 3rd to and after that the clutch lets go and just spins up ..... Im just so amazed on the difference defo think im gona run a good 50/50 mix for a while and every now and agin when im skint run 100% veg, Carnt wait to get the td04 on now and gov mod

Is it worth me looking in to a in line fuel heater??

I was going to do the fuel filter mod but it wont warm the veg up when the car is cold so i dont see the point to be honest

[cwspellowe]

Personally I wouldn't bother with a heater, i've bypassed the fuel filter and running an in line one, so no heater, and it still starts first time every time, although it was missing for a couple of minutes yesterday.

Saying that, my entire car's a bodge so yeah, maybe don't follow in my footsteps

[D@wson]

I've run 100% veg for a year now never really had a problem except for changing the fuel filter.
Done 10,000 miles so far

[CJ_Derv]

Stop being tight arses n running veg haha ultimate derv all the way :p

[D@wson]

Gotta be done when your an unemployed hobo xD

[Chris_90]

I've run 100% veg for a year now never really had a problem except for changing the fuel filter.
Done 10,000 miles so far

I dont get why im running in to issues after only 3,000-4000 miles just my luck tbh lol

Stop being tight arses n running veg haha ultimate derv all the way :p

You must be on to much money lol

[cwspellowe]

I've run 100% veg for a year now never really had a problem except for changing the fuel filter.
Done 10,000 miles so far

I dont get why im running in to issues after only 3,000-4000 miles just my luck tbh lol

Stop being tight arses n running veg haha ultimate derv all the way :p

You must be on to much money lol

Depends on the condition of seals, injectors, pump, filters etc when you start running it. They may have been on the way out already, running veg won't have helped.

I stopped before I got any real trouble but my leakoffs did melt at one point.

[CJ_Derv]

Stop being tight arses n running veg haha ultimate derv all the way :p

You must be on to much money lol
[/quote]

Could be true haha but may have to start a bit of veg when i order my R6 n do bike testlol

[Chris_90]

I've run 100% veg for a year now never really had a problem except for changing the fuel filter.
Done 10,000 miles so far

I dont get why im running in to issues after only 3,000-4000 miles just my luck tbh lol

Stop being tight arses n running veg haha ultimate derv all the way :p

You must be on to much money lol

Depends on the condition of seals, injectors, pump, filters etc when you start running it. They may have been on the way out already, running veg won't have helped.

I stopped before I got any real trouble but my leakoffs did melt at one point.

So what are you saying? that it could be my pump/injectors that could be dieing? i thought the bosch could just take it for ever with out issue lol or am i expecting to much? i changed my filter twice in 3/4,000 mile so that should be ok plus running brand new veg oil not used

[cwspellowe]

Yeah but some of the seals in the fuel system don't agree with veg.

The fact it's clearing up to me just says its arteries were getting a bit clogged. Might well be ok once it's had a run on the good stuff.

Besides, derv = POWAHH!