reg valve?

Ive lost all the power in my Bravo 1.9 105 JTD. Apparently there is a valve called the r.e.g. valve???? on the exhaust that opens and closes and pushes air through the system and creates the power??? Does anybody know what the hell these valves are that im being told about? and where I can get one? Please help he is so slow at the minute and I not be liking it.

Hi Does anyone know if its an EGR Valve I need??? Ive got a Bravo 1.9 JTD 105 and its lost all its power. The turbo is firing but there is just nothing there. Mechanic says it maybe the EGR valve. Where can I get one of these things from?

Simple check.

If it gets to 3000rpm and runs out of power - symtops of MAF sensor failure.
If it has no power under 3000rpm then boosts - symtoms of EGR failure.

Case 1. Unplug the MAF - if it runs fine after then it's in need of a MAF.
Case 2. Block the pipe between EGR and manifold/exhaust using a blank gasket. If it runs fine after it needs a EGR.

Lack of information, however from experience the MAF sensor will result in poor accelleration, the EGR will affect it a little but you'll notice more smoke if its the EGR. Replacing the MAF (Mass Airflow Meter) should see your car right. Genuine parts are approx £150, ebay ones about £40 but they aren't as good. You can fit it yourself, its the air sensor thats found just after the air filter box with a plug going into it.

Go and unplug the MAF, and order a new one. You want a genuine Bosch one (try big motorfactor suppliers like Andrew Page). You can drive around a while with it unplugged but I wouldn't run it for too long with it unplugged as it's used to give the engine the info it needs.

FYI the MAF sensor is the plug going into the air pipe just after the air filter.

Re: reg valve?

EGR valve.

Hellcat said:

Go and unplug the MAF, and order a new one. You want a genuine Bosch one (try big motorfactor suppliers like Andrew Page). You can drive around a while with it unplugged but I wouldn't run it for too long with it unplugged as it's used to give the engine the info it needs. FYI the MAF sensor is the plug going into the air pipe just after the air filter.

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Im sure i said this in my first post,

And yes it sounds definately like the MAF. Do a search on the Bravo/a section for MAF sensors and you'll find where to find them the cheapest. Think i remember it being £80 for a new bosch sensor from a place in Scotland.

You didn't suggest to unplug it to firm up the diagnosis.

Hellcat said:

You didn't suggest to unplug it to firm up the diagnosis.

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Thats because its not an accurate test. If i unplug the MAF on my JTD it runs like a 50CC moped. No go in it at all. As soon as i connect the MAF, whoosh, im away.

Why's yours act different to every other JTD that's had a dodgy MAF?

Hellcat said:

Why's yours act different to every other JTD that's had a dodgy MAF?

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It doesn't. You've just failed to realise that not all JTDs are the same. There are different phases of JTD engines with different electronics. I.e there are Bravo/a, Marea JTDs with mechanical EGRs and some with electronic EGRs. Phase 2 and Phase 3.

Ok mr people skills, he said Bravo 105. That's same engine as my 105 marea with the first of the JTD unit, basic EGR and which responds to a MAF removal. I know fine well there are differences between the JTDs.. excuse me though for not knowing exactly how every one of them works.

Hellcat said:

Ok mr people skills, he said Bravo 105. That's same engine as my 105 marea with the first of the JTD unit, basic EGR and which responds to a MAF removal. I know fine well there are differences between the JTDs.. excuse me though for not knowing exactly how every one of them works.

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No need to be like that.

Did the MAF turn out to be the problem? And equally importantly, is the car back up to full speed?

Re: reg valve?

Exhaust Gas Recycle Valve :life:

Take it to fiat and get it sorted under warranty

Re: reg valve?

sshnlawson said:

Ive lost all the power in my Bravo 1.9 105 JTD. Apparently there is a valve called the r.e.g. valve???? on the exhaust that opens and closes and pushes air through the system and creates the power??? Does anybody know what the hell these valves are that im being told about? and where I can get one? Please help he is so slow at the minute and I not be liking it.

Click to expand...

Usually a new MAF (air flow meter) will solve power problems as these are the most common failures on the JTD, this is the sensor located just after the air box leading to the engine, near the battery. Typically if your car struggles to rev over 3000-3500 rpms its the MAF. If you get sudden bursts of power or lots of smoke then its the EGR. However if you still want to replace the EGR then dont bother, clean it. Here is a guide on how to clean the JTD105 EGR....

LINK

How much could the MAF affect power ???

I bought a lemon today bravo 100 hlx jtd, no power, max rev was 4,500 and I couldnt get it above 30-35 at points, got recovered in the end !

now it wont go over 2000 revs, and almost stalling under movement.

recovery guy said most like a sensor on the gas pedel ????

please, sob sob, what to do......