Check Injection, Cold start problem.

[scottdmc88]

Im having the same problem at the minute mines only started last monday, my check injection and service stays on all the time, but when the engines warm it starts fine, ive bought new plugs today gonna fit them tommorow and see if it works, mot due on saturday so hopefully its sorted. If not i think it could be the egr valve as theres loads of info online about them getting dirty.

Hello!

Did you get anything sorted?


I have changer the EGR valve with a used one (supposed to be ok) The car ran much nicer and also the accelaration was improved. The thing is...after driving for abou an hour i got the "Check injection" message. What I have noticed is that the minute the message appears, the car has a noticable rougher idle, and when accelarating, one of the injectiors has a clanking noise. I'm starting to guess it's a faulty injectior, or has something to do with it's electronics. But hopefully someone will explain it better.
Any other suggestions?

But like i've said, when the error is deleted, the car is like new. Have another appointment with mechanic tomorrow. Will post any news.

Hi

Nope still got the same problem after changing all four plugs, the message still appears.
Passed mot today thankfully but i dont know what else it could be.

[tomalamix]

ok, to both of you...

the EGR will NOT produce a difficult start, Glow plugs do, injector malfunctioning also, among other things not so obvious (longer shots...).

Pirmoz: Dont swap just the injector, take them all out, service all of them. Even the injector that is faulty can be most of times recovered with brand new nozzles.

scottdmc88: For now test the glow plugs, one step at the time...

good luck to both

[Pirmoz]

ok, to both of you...

the EGR will NOT produce a difficult start, Glow plugs do, injector malfunctioning also, among other things not so obvious (longer shots...).

Pirmoz: Dont swap just the injector, take them all out, service all of them. Even the injector that is faulty can be most of times recovered with brand new nozzles.

scottdmc88: For now test the glow plugs, one step at the time...

good luck to both

Hey!

Thanks for the wishing luck part =).

Not that i'm trying to be smart or anytning...it's just, since i've changer the EGR I don't have the problem.
But the injector has to be changed anyway.

HF

[tomalamix]

i maintain my position, EGR will not produce an hard to start engine.

cheers

[AlexB]

Yes, when the engine is not running, there is nothing to recirculate! The EGR can cause rough idle, but not starting problems.

i maintain my position, EGR will not produce an hard to start engine.

cheers

[2busa]

mine runs lumpy on idle when cold but improves when warm once in a blue moon stop flashes up and the injector fault flashes up for a split second . mine machanic says he believes it cold be the glow plugs . if one isnt working aswell as the others it wont burn the fuel as much as others which will indicate there is a fault in the injector but its probley not , it just thinks there is if this persists once ive changed glow plugs then im guessing it will be an injector . how much do you think it would cost to get them refurbed rather than buy others ??... oh hi peeps im new to this btw ! cheers joe

[AlexB]

Clean the EGR valve and use only synthetic oil.

[Pirmoz]

i maintain my position, EGR will not produce an hard to start engine.

cheers

Agree!

[Pirmoz]

It's a bit late, but I will post it for anyone who has this sort of problems.

At the end it was a faulty injectior. However I'm still getting "check injection" warning when I'm cruising on motorway and my consumption drops to about 2-3 l/100km. When I press gas, there is a bit of hesitation for about a second then it pulls normaly. Overall consumption has risen for abou half a liter per 100km.
Guessing another faulty injector .

Thanks for your help!

[davelowe]

I'm mystified. 2 - 3 litre per 100 km equates to over 100 mpg unless I am miscalculating. That figure is far too high. It should be around 30 - 70 mpg depending on motoring use.

Injectors must be coded to the car and its ECU owing to differing delivery rates. The 1.9 will start in ridiculously low temperatures without glowplugs. What, exactly, is your problem?

[tomalamix]

Did you toke out ALL injectors or are taking one at the time? The check injection appears on steady driving or only when pulling the engine up?

[Pirmoz]

Only steady driving on motorway... as I said, when current consumption drops to about 2-3 litres/100 km, then the warning appears. But that is CURRENT consumption...not average. Average sits at 5.5l/100 km, which is abou half a litre more than before I changed the injector.

When I press the throttle everything returns to normal.

I only changed one. Others remain the same.

[Pirmoz]

I'm mystified. 2 - 3 litre per 100 km equates to over 100 mpg unless I am miscalculating. That figure is far too high. It should be around 30 - 70 mpg depending on motoring use.

Injectors must be coded to the car and its ECU owing to differing delivery rates. The 1.9 will start in ridiculously low temperatures without glowplugs. What, exactly, is your problem?

That's right! But that is current consumption. Average consumption is arround 45mpg. It's a bit lower than before...

I have a 1.5 dCi not 1.9.
The car now starts fine...sort of... In the morning, when I start it, there is a bit of shaking and quite a bit of smoke (grey or white, not shure of the color...)

[AlexB]

He is talking about instantaneous fuel consumption - a continental dashboard, probably. It can actually show 0 when going down hill.

I'm mystified. 2 - 3 litre per 100 km equates to over 100 mpg unless I am miscalculating. That figure is far too high. It should be around 30 - 70 mpg depending on motoring use.

Injectors must be coded to the car and its ECU owing to differing delivery rates. The 1.9 will start in ridiculously low temperatures without glowplugs. What, exactly, is your problem?

[AlexB]

Pirmoz,

Check the glow plugs. The can cause shaking on cold start. In 1.5 they may also be needed under the extremely low load conditions - this is when your current or instantaneous fuel consumption goes down.