Neil20vtc 44 Posted February 7, 2016 Report Share Posted February 7, 2016 After some help/advice please having some bother with my other halfs 4mo missfiring it did it a few weeks ago intermittently which then turned into constantly plugged the laptop in fault codes pointed to no 6 cylinder missfire so I replaced the coil pack ( I erased the codes at this point) all seemed good then the other day it missed for a few seconds then returned to normal I have scanned it again and got these codes 17606- lambda sensor heater circuit b1 s2 electrical malfunction, 16684- random/multiple missfire and 16685- cylinder 1 missfire detected my question is the lambda/ the lambda code thrown up the cause of the problem as I don't want to keep throwing coil packs at it if it's the lambda/ lambda circuit that is the root of the problem cheers Neil VR6Pete 1 Link to post Share on other sites
mattvr6 133 Posted February 10, 2016 Report Share Posted February 10, 2016 U'll get a lambda fault with a misfire unburnt fuel open loop circuit etc, change all the coils and check plugs would be my first port of call pal VR6Pete and Bealieboy 2 Link to post Share on other sites
Neil20vtc 44 Posted February 10, 2016 Author Report Share Posted February 10, 2016 Thanks for the reply i shall get some coils ordered mattvr6 1 Link to post Share on other sites
Neil20vtc 44 Posted February 19, 2016 Author Report Share Posted February 19, 2016 not got round to changing the coils yet as car hadn't been misbehaving but as of this morning it now starts then cuts out straight away if you apply the throttle or after a few seconds in idle, plugged the laptop in as well as the original codes I posted above it is now showing 16785 and 17819 which from what I've found are to do with the secondary air injection system any ideas if this is the cause of the stalling or is it due to the problem with the coils/plugs? any help appreciated Neil VR6Pete 1 Link to post Share on other sites
Neil20vtc 44 Posted February 21, 2016 Author Report Share Posted February 21, 2016 Update on this Cleared the codes and tried again the sai ones never showed again but two codes for the rear lambdas heater circuits short to ground showed up cleared those messed around with a few things and finally got the car to run but now showing a code for the maf and inlet temp sensor cleared those codes with the car still running and it instantly stalled and wouldn't start again unplugged the maf and it runs so I'm hoping the stalling issue is due to a faulty maf will get one tomorrow and see if it sorts it Link to post Share on other sites
mattvr6 133 Posted February 21, 2016 Report Share Posted February 21, 2016 Could be but check for air leaks there's one that runs round the back that's give lambda faults as its running lean, the heater part of the lambda heats it to close the loop on the ecu quicker to get the best from the engine quicker Neil20vtc 1 Link to post Share on other sites
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