MK5 Golf GTI

All Things Mk5 => How to Guides / Troubleshooting => Topic started by: wilsy_ on October 21, 2015, 07:02:02 pm

Title: Problems at low revs
Post by: wilsy_ on October 21, 2015, 07:02:02 pm

So, I have an edition 30 and recently got all the hardware to go stage 2.

I'd noticed that it was struggling when sitting on the motorway/dual carriageway below 2500rpm. I assumed this was due to it needing a map. Today I had it mapped with Revo Stage 2 software. Its great when I have the foot down, but the problem when driving sensibly still occurs.

It feels like the car is almost trying to stall, and becomes jumpy and almost sounds like its choking?

Anyone any ideas what this could be, as no warning lights etc.

Title: Re: Problems at low revs
Post by: wilsy_ on October 21, 2015, 10:13:17 pm

warning light has came on, it's the p0135 which I understand is the pre cat sensor? Is it simply just replacing this or is there possibly another problem?


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Title: Re: Problems at low revs
Post by: pudding on October 22, 2015, 04:13:22 pm

Assuming a DP was fitted?  Did the O2 sensor harness get twisted and a wire snapped?  Check that first and if it looks intact, just replace it with a new genuine one.

I'm surprised Revo went ahead and mapped it with a dead sensor tbh.

Title: Re: Problems at low revs
Post by: wilsy_ on October 22, 2015, 09:54:07 pm

Quote from: Pudding on October 22, 2015, 04:13:22 pm

Assuming a DP was fitted?  Did the O2 sensor harness get twisted and a wire snapped?  Check that first and if it looks intact, just replace it with a new genuine one.

I'm surprised Revo went ahead and mapped it with a dead sensor tbh.

Thats quite possible, ill check that out tomorrow, then try a new sensor.

Title: Re: Problems at low revs
Post by: scopes on December 18, 2015, 10:42:37 am

Did you ever solve your problem Wilsy ?