Idling problems

2.2 I5 20v turbo - 315 bhp
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DamoM
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Joined: Thu Feb 10, 2005 10:16 pm
Location: Woking

Idling problems

Post by DamoM » Tue Jun 07, 2005 10:17 am

looking for a bit of help with an ongoing problem with my '95 RHD car.

Had starting stalling regularly and hunts when trying to idle.

Have swapped the idle control valve with my 20v UR but that makes no difference.

Have checked all of the pipes for leaks and checked that all connections are secure.

HELP..........!!
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alastairg
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RE: Idling problems

Post by alastairg » Tue Jun 07, 2005 11:40 am

Air leak
MAF dirty or done
Sparks
RS2 'an estate car named Desire'
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DamoM
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Posts: 149
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Location: Woking

RE: Idling problems

Post by DamoM » Tue Jun 07, 2005 2:34 pm

alastairg wrote:Air leak
MAF dirty or done
Sparks
checked for air leaks. swapped the MAF with my UR quattro one (RS2 spec) and no change. New plugs fitted but no change. Interestingly the car idles absolutely fine with the MAF disconnected (but obviously will not drive under boost in this guise!). Any ideas?
1995 (M) Noggie RS2. MD357 turbo and remap. tba bhp.
2000 (X) Noggie RS4. Miltek Cat back. No cats. B7 discs/RS6 calipers. ally flywheel, DUH FMIC, ceramic coated tubular manilfolds, large intake pipes, RS6 turbos, 3" downpipea, large injectors etc MRC remap, 592bhp, 535lbft
1990 (Q) 20vURQuattro. Being fitted with RS4 motor & 6 speeder,porsche brakes.
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maRS2
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RE: Idling problems

Post by maRS2 » Tue Jun 07, 2005 5:47 pm

Did you check altitude ambient presure F96 sensor
Green 95 RS2 TT(twin torsen) Mihnea chip, full 3" custom exhaust, forge dump valve, 18x8 boxterS, Rose joints top mounts, alloy sub frame, powerflex bushes,Bilstein,Neuspeed 19mmRS4 rear ARB, rear V8 Torsen, Removed (AC,Aux Rad,spare wheel and tools)
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DamoM
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Posts: 149
Joined: Thu Feb 10, 2005 10:16 pm
Location: Woking

RE: Idling problems

Post by DamoM » Tue Jun 07, 2005 5:56 pm

maRS2 wrote:Did you check altitude ambient presure F96 sensor
No I didn't...! What is it, where is it and how do I check it!
1995 (M) Noggie RS2. MD357 turbo and remap. tba bhp.
2000 (X) Noggie RS4. Miltek Cat back. No cats. B7 discs/RS6 calipers. ally flywheel, DUH FMIC, ceramic coated tubular manilfolds, large intake pipes, RS6 turbos, 3" downpipea, large injectors etc MRC remap, 592bhp, 535lbft
1990 (Q) 20vURQuattro. Being fitted with RS4 motor & 6 speeder,porsche brakes.
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GlynRS2
4th Gear
Posts: 571
Joined: Thu Dec 04, 2003 12:22 pm
Location: West Sussex

RE: Idling problems

Post by GlynRS2 » Tue Jun 07, 2005 7:01 pm

Have a look at this thread on the S2 Forum:
http://www.s2forum.com/forum/showthread.php?t=2899
Glyn
Navarra Blue RS6 Vorsprung (C8)
Sepang Blue RS6 Performance (C7) - sold
Sepang Blue S5 sportback (B8.5)- sold
Monza Silver RS6 (C6) - sold
Sprint Blue RS4 (B7) - sold
Polar Silver RS2 (B4) - sold
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DamoM
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Joined: Thu Feb 10, 2005 10:16 pm
Location: Woking

Post by DamoM » Thu Jun 16, 2005 6:41 pm

replaced dump valve - problem solved!!!

Thanks guys.
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alastairg
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Post by alastairg » Thu Jun 16, 2005 7:49 pm

was the diaphragm split ?
RS2 'an estate car named Desire'
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GlynRS2
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Joined: Thu Dec 04, 2003 12:22 pm
Location: West Sussex

Post by GlynRS2 » Thu Jun 16, 2005 8:21 pm

Which dump valve did you use?
I replaced mine with a Forge 007. Others have used the S3 one or of course you can always stick with the OE RS2 one.
Glyn
Navarra Blue RS6 Vorsprung (C8)
Sepang Blue RS6 Performance (C7) - sold
Sepang Blue S5 sportback (B8.5)- sold
Monza Silver RS6 (C6) - sold
Sprint Blue RS4 (B7) - sold
Polar Silver RS2 (B4) - sold
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DamoM
2nd Gear
Posts: 149
Joined: Thu Feb 10, 2005 10:16 pm
Location: Woking

Post by DamoM » Thu Jun 16, 2005 9:17 pm

It was a piston type one and was leaking under a vacuun test. I replaced it with the S3 item which by all accounts is stronger than the OE RS2 one..?
1995 (M) Noggie RS2. MD357 turbo and remap. tba bhp.
2000 (X) Noggie RS4. Miltek Cat back. No cats. B7 discs/RS6 calipers. ally flywheel, DUH FMIC, ceramic coated tubular manilfolds, large intake pipes, RS6 turbos, 3" downpipea, large injectors etc MRC remap, 592bhp, 535lbft
1990 (Q) 20vURQuattro. Being fitted with RS4 motor & 6 speeder,porsche brakes.
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alastairg
4th Gear
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Joined: Fri Mar 26, 2004 10:36 am

Post by alastairg » Fri Jun 17, 2005 9:42 am

Excellent choice. Standard diaphragm type are quicker reacting than piston but need to be considered service items.
RS2 'an estate car named Desire'
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VaudiGR
3rd Gear
Posts: 373
Joined: Mon Aug 01, 2005 6:20 pm

Post by VaudiGR » Wed Aug 10, 2005 5:02 pm

what is a dump valve and where is it located in the engine bay?i need to know cause i may be having the same idle problems
thanks!
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