P1283 after remap with Milltek and Berk HFC's

[Fluke]

As per title, my car (Its a 2003 DE UpRev) threw a P1283 after having the Berk HFC's fitted to my Milltek system. This was after having a remap at TDI North last week. If I swap my HFC's back to my factory standard cats and clear the code it doesn't return until I put the Berk HFC's back on, and will return after a few miles even after multiple resets.

 

 

My understanding is that the code is a lean shift on bank 2 sensor 1 and this is pre-cat. Can anyone tell me how to solve the problem?

[Paddy78]

Phone TDI and get them to look at it?

[Fluke]

Its the second time I have been back to them and it only seems to happen with the Berk's fitted. Has anyone else had the same problem?

[ZMANALEX]

Phone TDI and get them to look at it?

 

Or swop out the sensor.

[Tricky-Ricky]

Why didn't they simply turn off the cat O2 sensors during the remap....its a little worrying that they don't seem to know to do this when fitting decats or hyflow cats., sensors 1-bank 1 and 2 is the main O2 sensors, sensors 2- bank 1 and 2 are the cat monitors.

[ZMANALEX]

You can't turn off the sensors for the OPs issue as the code relates to front sensors.

 

However the rear sensors as you rightly mention can be turned off as they serve little significant purpose.

[Tricky-Ricky]

Couldn't find the code, so presumed it was the usual cat sensors giving a spurious reading.

[Stutopia]

Given the cats have been changed, is there a chance this might be a genuine air leak?

[Mark@Abbey m/s]

old slow sensor or air leak is my guess?

 

did you get the berks fitted?

[GMballistic]

Its the second time I have been back to them and it only seems to happen with the Berk's fitted. Has anyone else had the same problem?

Nope.

Ran Berks HFC's with an Invidia Gemini system on my old 03' Zed that Horsham Developments remapped (UpRev) and never had an issue.

 

Good luck.

[Fluke]

Would a dodgy front sensor work with the factory fitted cats and not the Berks? Would a leak down stream of them throw up the code?

 

I replaced the both rear O2 sensors when the Berks were fitted as they were falling apart when they were taken out during the factory fitted cat removal.

 

The car runs fine and if I refit the factory cats and clear the code, it doesn't return. Would an air leak on the Berks HFC's cause a P1283 code?

[Tricky-Ricky]

Its possible for a downstream air leak to mess with the front sensor reading due to reversion, but only likely if the leak is at the junction of the manifold and the cat, as i said i don't have that code on my chart so was nor sure which sensor or rich/lean, but if its showing a lambda code for either then its obviously out of range.

[Fluke]

The Berks seem to fit fine, and I cant detect anything blowing. I was wondering if a bad seal around the o2 sensor going into the HFC would cause an issue? I know that the thread on the HFC bung had to be chased when it was fitted.

[Tricky-Ricky]

i would say it would have to be quite a leak to affect the reading.

[ZMANALEX]

See post #4

[Fluke]

Alex, do you have a sensor available?

[ZMANALEX]

Alex, do you have a sensor available?

 

Yes brand new and pre owned are in stock.

 

Drop me a PM if I can help further.

 

Alex.