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Forums › The Car › Solved 206 Problems › HDI 2.0 Power Issue - SOLVED


 
 

HDI 2.0 Power Issue - SOLVED
Forum IndexSolved 206 Problems
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MattBurrows
PostPosted: Sun Jan 04, 2015 1:22 pm Up
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Hello.

My HDI has never done more than 80mph on a flat road.

Recently i have had an issue where the power will shoot to more than ever for about 30 seconds before returning to normal

Any ideas what would be causing this?

Should I unclip the EGR Valve? Could it be the fuel pump?

Obviously i would like to utilize this higher power as the car is capable of producing it.


Last edited by MattBurrows on Wed Jan 21, 2015 11:30 am; edited 4 times in total
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mattymj
PostPosted: Sun Jan 04, 2015 1:44 pm Up
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Get the ecu fault codes read..
 
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MattBurrows
PostPosted: Sun Jan 04, 2015 1:49 pm Up
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do you think disabling the EGR Valve would be a good idea anyway? and is it easy to do?
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macca1411
PostPosted: Sun Jan 04, 2015 2:02 pm Up
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I would stop driving the car immediately as you cannot control the speed of the engine and therefore the car is not in safe working order for use on the public road.

Did the engine revs increase when the car suddenly had an increase of speed? Go off the noise from the engine, not what the dash said.
Has the EML illuminated?
What year is the car?
Any Peugeot service history?

Intermittent faults are always difficult to find and sods law says that as soon as you start looking for it, it won't happen. Stop looking for the fault and it will happen all the time.

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20Drift
PostPosted: Sun Jan 04, 2015 2:05 pm Up
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MattBurrows wrote:
do you think disabling the EGR Valve would be a good idea anyway? and is it easy to do?

Get the codes read first, then speak to southwestchap.

 
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MattBurrows
PostPosted: Wed Jan 21, 2015 11:27 am Up
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On closer inspection, the back box was rusting away, the connection to the main pipe was splitting and causing the surges in power.

I have now fitted a straight thru exhaust and had the cat piped off.

It now runs great.


Thanks guys : )

 

2.0 HDI TURBO SPORT: Thru Exhaust, Decat, Debadge, OZ Racing Alloys, Lexus Lights, P2 Bootstrip, Blue Dash/Footwell Lights...
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Steve206
PostPosted: Wed Jan 21, 2015 2:50 pm Up
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Are you sure? Can't see how that would cause a power surge
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MattBurrows
PostPosted: Thu Jan 22, 2015 10:26 am Up
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yeah, when the join started to crack, exhaust gasses would escape, back pressure would decrease and off it would go.

when the join cracked apart completely, the backbox was no-longer connected and i had loads of power.

After getting the decat and thru pipe fitted, back pressure is at a minimum and it flies along.

 

2.0 HDI TURBO SPORT: Thru Exhaust, Decat, Debadge, OZ Racing Alloys, Lexus Lights, P2 Bootstrip, Blue Dash/Footwell Lights...
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Steve206
PostPosted: Thu Jan 22, 2015 2:11 pm Up
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I ran mine with no back box for a month. Made no difference to power. It's getting pressure from the turbo anyhow
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MattBurrows
PostPosted: Thu Jan 22, 2015 2:20 pm Up
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Whats your engine size...

This definatly made a difference. Top speed was 80, now it's above 110, but Im not sure exactly!

 

2.0 HDI TURBO SPORT: Thru Exhaust, Decat, Debadge, OZ Racing Alloys, Lexus Lights, P2 Bootstrip, Blue Dash/Footwell Lights...
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Addaz
PostPosted: Thu Jan 22, 2015 2:41 pm Up
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This shoudl make no difference unless you backbox completely collapsed in on itself which i doubt.

Probably a vacuum leak

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Steve206
PostPosted: Thu Jan 22, 2015 3:06 pm Up
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Mine was a 2 litre. I was going to suggest turbo surging
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