6 Fault Codes Help

[leoncupra2012]

Further investigation into the new leon i bought yesterday ( 03 reg 180 AUQ remapped to 240 bhp stage 2)

Was sounding like a subaru under load, misfiring with the engine management light flashing.

Got vagcom working but only the lite version, these are the results. 6 fault codes found.

Google research suggest (as vagcom lite doesnt give full details)

16684 - Random/Multiple Cylinder Misfire Detected 35-10 - Knackered coilpack/coilpacks?

16688 - Misfire detected cylinder 4 - The culprit dodgy coil ?

17608 - (Boost Pressure Control Valve) N249 - This has been removed so thats ok.

18010 - Power Supply B+ Terminal 30: Voltage too Low - What the hell is this?, it had to have a replacement battery and there is a indicator bulb blown but nothing else electrical i know of?

16486 - Mass Air Flow Sensor (MAF/G70): Signal too Low - It doesnt have one its been removed? Theres just the hole where it used to be?


17763 - Cylinder 1 Ignition Circuit: Open Circuit Coilpack on Number 1 too?

Not too bad really.

 

[SlimLCR]

16684 and 16688 are one in the same, 16684 tells you there's a misfire, and then 16688 tells what cylinder.
18010 - if this hasn't been reset since having the new battery, reset and monitor. I had this code before Xmas and realised I hadn't reset it since fitting a new battery when mine died. It's been fine since.

 

[leoncupra2012]

Cheers, im pretty happy with that to be fair. I got 250 knocked off the sale price and if it costs me 60 or so for a couple of coilpacks and it runs fine ill be chuffed. Its got no maf on it and theres just a hole so i need to cover that up.. really odd !

 

[james.l]

Why has it got no MAF?

 

[matty85]

By reading his other post's it seems like it has been mapped out