endrop - for all your online needs

General Engine Management Light/Limp Mode

Currently reading:
General Engine Management Light/Limp Mode

I

Ianmacdonald

New member
Joined
Feb 11, 2013
Messages
13
Points
4
Hello. I've been away for a while but decided to give it another go with a low miles 2008 Multipla 1.9 Multijet.
On my way back from picking it up the Engine Management Light came on and it went into limp mode. The fault codes were associated with the EGR and MAP sensor. I replace the MAP and reset fault codes but no joy. As soon as the revs get up around 3800rpm it came back on. Tried resetting it again and reached between 70 and 80MPH and it came on again.

I then decided to check what looked like a newly fitted EGR and as expected it was brand new but whoever fitted it had made a complete hash of it. There were no gaskets and they had fitted a restrictor on the inlet instead of the outlet. All the joints were loose and they'd put the long bolts in the wron place so one of them had burst through the bottom of the hole and the other had just bottomed out before it got tight. I got a set of gaskets and put it all back together correctly and all bolts tightened.

I was sure I got to the bottom of the problem but as soon as I hit 3800rpm the light came on again. I'm now thinking it might have something to do with the Boost solenoid and wondered if it was possible to have the hoses on it the wrong way round?
 
Ianmacdonald said:
Hello. I've been away for a while but decided to give it another go with a low miles 2008 Multipla 1.9 Multijet.
On my way back from picking it up the Engine Management Light came on and it went into limp mode. The fault codes were associated with the EGR and MAP sensor. I replace the MAP and reset fault codes but no joy. As soon as the revs get up around 3800rpm it came back on. Tried resetting it again and reached between 70 and 80MPH and it came on again.

I then decided to check what looked like a newly fitted EGR and as expected it was brand new but whoever fitted it had made a complete hash of it. There were no gaskets and they had fitted a restrictor on the inlet instead of the outlet. All the joints were loose and they'd put the long bolts in the wron place so one of them had burst through the bottom of the hole and the other had just bottomed out before it got tight. I got a set of gaskets and put it all back together correctly and all bolts tightened.

I was sure I got to the bottom of the problem but as soon as I hit 3800rpm the light came on again. I'm now thinking it might have something to do with the Boost solenoid and wondered if it was possible to have the hoses on it the wrong way round?
Click to expand...
The 2 hoses connected to the boost control solenoid valve do have to be connected to the correct ports.
 
Hello.The fault code is P0203 and EGR intermittent.
I tested the Vacuum Solenoid this evening and it's holding vacuum to the dump valve. I think I'm right in thinking it should only hold vacuum at low idle so thinking the Solenoid may be at fault.
 
Hi and thanks for your reply.
I've finally got to the bottom of the problem. The waste gate was stuck solid. A good squirting of releasing oil and a couple of taps with a long reach screwdriver and it started moving.

I took the car for a run and it's like a rocket ship. I couldn't believe the difference and could hear the waste gate opening when I lift off.

The thing I'm still a bit concerned about is the hoses on the vacuum solenoid. I tried them both ways round and to be honest I couldn't really tell much difference. One way seems to give less boost at low revs while the other way seems to run out of boost at higher revs, but that could just have been the differing road conditions on my test drive.

If someone could have a look at their own and let me know which way is the correct way I'd be very grateful.
 
...No need I've sorted it. We put the diagnostic on it last night and could see it was way above target boost the way the hoses were fitted when I got the car. A quick swap and target and actual boost were almost identical.

If anyone is interested the hose going to the wastegate is on the inner nozzle and Vacuum pipe is on the outer one.
 
You must log in or register to reply here.

Similar threads

C
Technical Engine Control light
Replies
3
Views
586
ceeemdee
C
Mpobor
Tuning Sleeper multipla with Engine swap
Replies
0
Views
47
Mpobor
Mpobor
B
Technical swap engine perhaps
Replies
8
Views
557
Mpobor
Mpobor
G
Technical 2005 fiat multipla reverse light switch plug messing
Replies
1
Views
268
bugsymike
B
H
Technical 2002 Multipla reversing light oddity
Replies
1
Views
376
HughJarsse
HughJarsse
Back
Top