Help! am I in limp mode?

[MrSkins]

Hi peeps just picked up a little Ibiza 1.4s mpi on a 2001 plate, I bought it with a problem thinking easy fix as a little run around. Trouble is it won't rev above 2000rpm flat to the floor that's all I get. I have no warning lights on so ran my VagCom through it and the main issue is misfire coming up in live data, I've checked the usual suspects, plugs and top of inlet but nothing seems suspect, the chap I bought it off said he's just had a rear engine mount fitted and since it's had this problem so I also checked around that area for damage but nothing?

Any clues??

TIA

 

[MrSkins]

If it helps at all, here's my VagCom report:


Saturday,15,June,2013,13:16:51:32264
VCDS Version: Release 11.11.3
Data version: 20120401
HomeDiag



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 6K - Seat Ibiza/Cordoba
Scan: 01 02 03 08 15 17 25 45 56

Mileage: 131580km/81760miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 030-906-032-AUD.lbl
Part No: 6K0 906 032 AC
Component: ME7.5.10 4192
Coding: 00001
Shop #: WSC 06402
VCID: 69D3A37D1362C31

3 Faults Found:
18010 - Power Supply Terminal 30
P1602 - 35-10 - Voltage too Low - Intermittent
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-10 - - Intermittent
16688 - Cylinder 4
P0304 - 35-10 - Misfire Detected - Intermittent
Readiness: 0010 0001

-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 6K0-959-291.lbl
Part No: 6K0 959 291
Component: AUTOCLIMA-220 X06.00
VCID: F4ED4209C4A08E9

2 Faults Found:
00779 - Outside Air Temp Sensor (G17)
30-10 - Open or Short to Plus - Intermittent
00532 - Supply Voltage B+
07-10 - Signal too Low - Intermittent

-------------------------------------------------------------------------------
Address 15: Airbags Labels: 1J0-909-60x-VW3.lbl
Part No: 1J0 909 603 BR
Component: AIRBAG VW3 - V04
Coding: 16978
Shop #: WSC 06402
VCID: 7AF1EC3166C4789

1 Fault Found:
00532 - Supply Voltage B+
07-10 - Signal too Low - Intermittent

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 6K0-920-xxx-17.lbl
Part No: 6K0 920 901 C
Component: 6K-KOMBIINSTR. VDO V02
Coding: 00441
Shop #: WSC 00050
VCID: 2953E37DD3E2031

Subsystem 1 - Part No: IMMO
Component: IDENTNR: SEZ7Z0A1057291
IMMO-IDENTNR: SEZ7Z0A1057291

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio Labels: 1J0-035-18x-56.lbl
Part No: 6K0 035 156 A
Component: Radio GRO 1V32
Coding: 00401
Shop #: WSC 06402
VCID: 2649E841C2FC2C9

No fault code found.

End ---------------------------------------------------------------------

 

[MrSkins]

Just replaced the distributer coil pack thingy and still the same, anyone have any ideas?

 

[sterryps]

check the wiring to all sensors from the ecu which should have a 5 volt supply and earth

 

[MrSkins]

Many thanks I'll run through them, I have 2 exhaust sensors I'm guessing them aswell?

 

[MrSkins]

If this makes any sense, when it revs is does so freely upto 2000rpm then misfires and will not rev any higher???

 

[fossie]

Coil pack maybe

 

[MrSkins]

Thanks I've changed the ignition distributer pack (thing the plug leads plug in to) is there anything else that supplies this that could give me problems?

 

[fossie]

Are these coil packs or ht leads on your car buddy

 

[MrSkins]

No coil packs just leads that plug in to a hefty distributer, thanks

 

[fossie]

Tried changing the leads?

 

[Mark_vRS]

Have you tried replacing the Ignition Transformer? Follow the centre HT lead from the dizzy cap and you will find it.

 

[MrSkins]

Thanks guys yes changed leads but not transformer, probably worth a try

 

[MrSkins]

Had my head under the bonnet today and there's no centre lead just a bunch of wires... ???

 

[Tucker157]

Yes... You don't have a distributor, its one coil pack with 4 ht leads and a plug connection? About 6 wires?

Check the wiring leading to the coil unit and if it is all fine... Replace the unit?


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[MrSkins]

Yes thats the one, I've tried to trace the wires and I think they go into a little black box between the battery and headlamp, seems an arse to get at but worth a go

 

[Tucker157]

Either that or you'll be paying some mechanic to do the same..

Always worth saving the cash!!


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[funkydan]

air flow or o2 sencer aswell dude just giv um a quick cheak and ya plugs

 

[MrSkins]

Cheers guys, tried the 4 wires out of distributer and they only go into a loom, did a bit of digging around and the transformer is apparently part of the coil pack? Checked the wiring on sensors and seem ok maybe need to test resistance, there are also 2 o2 sensors, one on the exhaust manifold and one just after the downpipe...??

 

[@udi A3]

Ecu. Bet iis got wet or a sensor shorted out, check throttle pedal readings in measuring blocks