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(Post Link) post #51 of 74 Old 27-10-14 Thread Starter
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Originally Posted by Rosso159 View Post
EGR - that blows my mind!!!

Yeh, whoever thought to put the exhaust piper straight back into the engine must have been on one or very desperate....the ONLY advantage for diesels is the NOX reduction: less power, less torque, more soot (for the DPF)worse mpg, more carbon monoxide,more problems


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Yeh, whoever thought to put the exhaust piper straight back into the engine must have been on one or very desperate....the ONLY advantage for diesels is the NOX reduction: less power, less torque, more soot (for the DPF)worse mpg, more carbon monoxide,more problems


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Absolutely bonkers!
Good news at last... Unplugged the MAF sensor and took the car for a 20 minute drive around. No stutter and no chopping/mis-fire noise! I'm going to confirm tomorrow with a longer drive to work. Finally getting somewhere. Giblets thanks again.
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EGR and glowplugs

Hi all,

I have a Spider 946 2.4 from 2008, now has 75000 KM on the clock.The glowplug misfunction light and the associated message have been on for some time,but initially my garage said that fixing the problem was not urgent and as I have no trouble starting I left it.Now I have lumpy idling and the same garage now says that I should change all the glowplugs and the EGR (the later has become partially blocked according to them as a result of ingestion of unburnt fuel from the glowplugs). To do this work requires a budget of 1000 euros plus (450 euros for new EGR).
What does the community advise me to do?
I live in Paris, is anyone able to recommend a garage in the Paris area?
Thanks
PA
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(Post Link) post #54 of 74 Old 28-10-14 Thread Starter
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You can sort the EGR relatively cheaply (see the video on cleaning the EGR for removal/ cleaning) or buy a new one for €90 (the same engine as teh Opel 1.9 CDTI!) It is very easy!!

55215031 Valve EGR Pour Opel Vectra Signum Zafira 1 9 16V Z19DTH 150B HP | eBay

Glow plugs will not cause lumpy idle, read the thread on Glow plugs, €20 each and less than €10 for tools.
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Giblets can you offer some advice as you seem to know what your on about...

On the weekend I had the EGR value blanked, DPF removed and remap carried out on my 2.4 Brera. The guy from NJS said that all went well but he seems my car is slightly underpowered until 2000 rpm compared to all the other Brera's that he has remapped, but it goes like stink as soon as you get above 2000rpm. There also seems to be some white smoke on start up so think it could be linked.. could it be an injector problem??
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(Post Link) post #56 of 74 Old 28-10-14 Thread Starter
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Power Loss with Diesels: Guide

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Originally Posted by Dibble93 View Post
Giblets can you offer some advice as you seem to know what your on about...

On the weekend I had the EGR value blanked, DPF removed and remap carried out on my 2.4 Brera. The guy from NJS said that all went well but he seems my car is slightly underpowered until 2000 rpm compared to all the other Brera's that he has remapped, but it goes like stink as soon as you get above 2000rpm. There also seems to be some white smoke on start up so think it could be linked.. could it be an injector problem??
Could be any number of issues, turbo vanes could be sticky, swirl flaps stuck/ missing, or injectors.

I'd clean your MAP sensor, run some injector cleaner (and check the correction values using multiecuscan (the free version allows this)), also check for any pressure leaks in the turbo hoses ( would expect that across the rev range though)beyond that I would be taking it to an expert who can help identify any issues.
Surprised that NJS didn't have a quick look at the injectors values though if he was seeing it under powered.

Last edited by giblets46; 28-10-14 at 14:00.
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Cheers Giblets. I've been running Injector cleaner for about 2 months now as had a slight suspicion something was up... I'll clean the MAP as you said and see if that changes anything.. The guy at NJS did say to give him a call if it was still under powered after a few days of running and he will have a look at it, was a bit pushed for time on Saturday...
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we did check the correction values on saturday and they were within limits however this in it self is not proof the injectors are ok :-) nor is it proof they are not as explained to customer on saturday more investigation is needed to trace fault :-)
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Quote:
Originally Posted by giblets46 View Post
You can sort the EGR relatively cheaply (see the video on cleaning the EGR for removal/ cleaning) or buy a new one for 90 (the same engine as teh Opel 1.9 CDTI!) It is very easy!!

55215031 Valve EGR Pour Opel Vectra Signum Zafira 1 9 16V Z19DTH 150B HP | eBay

Glow plugs will not cause lumpy idle, read the thread on Glow plugs, 20 each and less than 10 for tools.
Its a 2.4.
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(Post Link) post #60 of 74 Old 13-11-14 Thread Starter
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Power Loss with Diesels: Guide

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Originally Posted by Hugh Myles View Post
Its a 2.4.

Which makes no difference. Same glow plugs and EGR, only other thing to suggest is you make sure the ecu map has been updated


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dibbles car is sorted :-)
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(Post Link) post #62 of 74 Old 14-11-14 Thread Starter
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dibbles car is sorted :-)
Good news, what was the cause?
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I've read the Swirl flaps thread... but cannot find them in my car. Does anybody have pics? Where am I supposed to spray the carb cleaner, simply on top? thanks
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Hi guys, new owner of an 159 1.9 jdtm 16v, and yes, no power at all. No under 2500 rpm, or above. I really don't know that much about cars, but the turbo sound noisy, well whisles to loud (my opinion) and from time to time the engine make strange sounds, like whrn you kill it trying to start with 3rd gear. No rpm fluctuations at idle, no other symptoms, as far as I know just I don't feel the 150 hp that the car have. Any advice?
PS: sort of money, can't go yet to the mechanic. Thanks
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(Post Link) post #65 of 74 Old 03-03-15 Thread Starter
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Follow the guide, blank the EGR, at worst it removed the EGR as a culprit


Any spelling/ grammatical errors are purely there to annoy!
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Can anyone help me dignose a long standing problems please?
Since I bought the car, I've been experiencing Power-loss/Stuttering/juddering when accelerating.
In the last few months the car has had...
New EGR
New Inlet Manifold
New MAP sensor
Clean and checked throttle body.

This led me to the MAF as unplugging it resolved the stuttering!!! YES, finally getting somewhere! Unfortunately, replacing the MAF with a brand new one has done nothing to resolve the problem. In fact it now stutters immediately when driving rather than when it's warmed up

Do I need to just drive it a bit and hope it settles down or could the problem be the wiring? ECU?
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(Post Link) post #67 of 74 Old 05-04-15 Thread Starter
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Originally Posted by Rosso159 View Post
Can anyone help me dignose a long standing problems please?
Since I bought the car, I've been experiencing Power-loss/Stuttering/juddering when accelerating.
In the last few months the car has had...
New EGR
New Inlet Manifold
New MAP sensor
Clean and checked throttle body.

This led me to the MAF as unplugging it resolved the stuttering!!! YES, finally getting somewhere! Unfortunately, replacing the MAF with a brand new one has done nothing to resolve the problem. In fact it now stutters immediately when driving rather than when it's warmed up

Do I need to just drive it a bit and hope it settles down or could the problem be the wiring? ECU?

Reading your post history, you've had a number of issues, might be worth keeping them in one thread to let people know what's been done (for instance the compression test....what happened with it, you never finished that thread). I would be taking it to an Alfa specialist such as Autolusso, Alfaworkshop (or ask in the area lounge if they are a little far for you) who are far more experienced with resolving issues than you' local garage'.

It could still be the EGR (garages often fit recon units which never work properly), non OEM MAF units often cause moer issues than they solve, and it could be the cambelt off one tooth, many many reason, in the end, think an expert may be the best option

159 1.9JTDM Ti and Giulietta 2.0 Veloce
ex: Punto 55s, Golf Mk5 1.4FSi, A3 (8P) Sportback 2.0TDi SE, A4 (B8) 2.0TDI S-Line, 306 HDI Meridian

Last edited by giblets46; 05-04-15 at 11:21.
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Thanks Giblets, I'll start a thread with full history.

The local garages I've taken my car to are Alfatechnico and more recently, AFH1. Both reputable and as far as I can tell well respected on here

Cheers
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I have and engine management light on at the moment asking to 'check engine'. I did loose turbo when it came on, but seem ok now even though light still on.
If any of these cleaning tutorials do the job and solve whatever issue I have, will the engine management go off or does that need to be done with a diagnostic machine?
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If any of these cleaning tutorials do the job and solve whatever issue I have, will the engine management go off or does that need to be done with a diagnostic machine?
With the majority of them, the engine light will disappear once the fault has not been read for a few starts (i.e engine off, remove key).

The EGR does not tend to raise a fault light though (unless it's been disconnected or it's a severe failure). If you can get a compatible fault code reader, it will point you in the right direction.
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Great read, very interesting and learning lots...cheers all.

But and typically my luck I can't find anything specific to issue I'm getting on 159 1.9 jtdm 16v, 103k and owned for last 3k miles.

When I was on way back after buying and testing out overtaking/trying my mate who's driving my petrol 156 home, the 159 went into limp mode (i was used to the petrol's longer revs!) and engine management light on. After engine restart all fine again...until high revs, then engine restart needed.

Had our fitter (vehicle gps systems) plug it in, turbo and dpf came up so regen done. Still the same issue.

Then the steering rack went so car to auto italia where he also changed maf and cleaned egr. Still issue at high revs so after reading up and finding a mates mate decided to remap also had egr blanked and dpf cored (drives great used to be slow pulling low revs and only 220 notes!).

So there I am...in new car, pushed it few times and all seems great then on motorway at almost 100 up hill I put foot down (just to see what she could do) at 105 it went into limp again, no management light on. Restart and all fine, on return journey took time creeping up to 110 then...you guessed it, limp mode!

Now on way back from work today going up a long steep hill...limp mode at 3500-4000 rpm.

Low revs and through the gears it pulls great and smoothly but high revs...limp! Does anyone have any idea what could be going on?

Cheers
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Problem solved

Incidentally I did some reading up on fuel additives and concluded that Rhino sounded the better.

After two half full tanks with Rhino added the issue has gone, must have been some mechanical part sticking.
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Originally Posted by Rosso159 View Post
Thanks Giblets, I'll start a thread with full history.

The local garages I've taken my car to are Alfatechnico and more recently, AFH1. Both reputable and as far as I can tell well respected on here

Cheers
Hey Ross159,

How did you go with the stutter? Especially after a few days down of new MAF? I'm in the same boat.
Mike
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Slightly different, but.....

An odd fault I had with my 2.4 Brera was an appearance of "check engine" when blatting along an A road, but with no obvious immediate signs of distress, but I quickly noticed that the turbo gauge was showing no boost at all.

Pulling away from the next roundabout there was certainly no boost and seemingly only a minuscule amount of power (foot flat to the floor in any lower gear to get any acceleration), but I limped it to a lay-by a few yards on. By this time the warning messages were coming thick and fast (no ABS, VDC, no hill-holder, etc etc.)

Called the AA, who plugged in the diagnostics, and traced the problem to the wiring loom that runs in front of the battery tray, the edge of which had worn through the binding and the insulation on one of the wires which had blown a fuse knocking out the turbo and all the other systems. A new fuse and a good winding of electrician's tape on the loom plus a couple of restarts and everything was back to normal, lots of boost and no warning messages.

I've not seen anyone else report the same problem(s), but worth bearing in mind perhaps.....
Me too, very poor wiring loom with strained wires....
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