mgztt 190 will not start

WallyH · 18th November 2022, 16:15

Hi All
Problems with car, i.e. not starting, I know she needs some maintainence including new exhaust. My wife used her yesterday and I had a phone call from her saying the car would not start and the exhaust had fallen off. The RAC towed her home and this morning I changed the cam sensor as RAC mentioned this was her problem. It will still not start and my maxiscan showed a full house of codes, PO138, PO341, PO 141, PO 445 and PO 335. My brain has gone into neutral, anybody have any idea why all these should show up! Is there some possible connection . Any help appreciated
WallyH

Matt_75 · 18th November 2022, 16:36

P0138 = O2 Sensor Circuit High Voltage (Bank 1, Sensor 2)
P0341 = Camshaft Position Sensor Circuit Range/Performance
P0141 = O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)
P0445 = Evaporative Emission Control System Purge Control Valve Circuit Shorted
P0335 = Crankshaft Position Sensor “A” Circuit Malfunction (Bank 1)

Looks like you might need a new oxygen sensor too but I'd start by checking for fuel and spark. Might be worth checking the cams and crank are in time still too.

vitesse · 18th November 2022, 16:39

Most of those relate to the oxygen sensors, but the interesting one is p0335 crankshaft sensor - does the rev counter needle move when the starter is engaged?

Regards

dave lincs · 19th November 2022, 06:44

Check engine management fuses in under bonnet fusebox for a start

Jamiewelch · 19th November 2022, 15:44

Rear lamba sensor wiring is known to chafe on the exhaust heatshield. If the wiring to that sensor has been damaged and the power shorted to ground you won't have power to the lambda sensors, camshaft or crankshaft sensor under the bonnet. Check the under bonnet fuses.

WallyH · 22nd November 2022, 07:20

Hi All
Thank you for advice, sorry for delay in replying. Still suffering effects of
covid and have days when I really do not want to do anything, Anyway had a look at engine fuse box and you were right Dave, management 15 amp fuse had blown ,new fuse in, silencer screwed back on and we are mobile again. There is of course the worry of why it blew. Anyway thank you all and Dave my wife spent many years at Louth when her father was at Binbrook and retired there.

WallyH · 22nd November 2022, 07:28

Me again
Just spotted your thread Jamie, perhaps that"s my answer to the fuse blowing must look at wiring when it"s drier. Thank you
WallyH

18th November 2022, 16:15	#1
WallyH Regular poster mg zt-t Join Date: Mar 2014 Location: crediton Posts: 82 Thanks: 0 Thanked 7 Times in 6 Posts	mgztt 190 will not start Hi All Problems with car, i.e. not starting, I know she needs some maintainence including new exhaust. My wife used her yesterday and I had a phone call from her saying the car would not start and the exhaust had fallen off. The RAC towed her home and this morning I changed the cam sensor as RAC mentioned this was her problem. It will still not start and my maxiscan showed a full house of codes, PO138, PO341, PO 141, PO 445 and PO 335. My brain has gone into neutral, anybody have any idea why all these should show up! Is there some possible connection . Any help appreciated WallyH

22nd November 2022, 07:20	#6
WallyH Regular poster mg zt-t Join Date: Mar 2014 Location: crediton Posts: 82 Thanks: 0 Thanked 7 Times in 6 Posts	ztt will not start Hi All Thank you for advice, sorry for delay in replying. Still suffering effects of covid and have days when I really do not want to do anything, Anyway had a look at engine fuse box and you were right Dave, management 15 amp fuse had blown ,new fuse in, silencer screwed back on and we are mobile again. There is of course the worry of why it blew. Anyway thank you all and Dave my wife spent many years at Louth when her father was at Binbrook and retired there.

22nd November 2022, 07:28	#7
WallyH Regular poster mg zt-t Join Date: Mar 2014 Location: crediton Posts: 82 Thanks: 0 Thanked 7 Times in 6 Posts	mg ztt Me again Just spotted your thread Jamie, perhaps that"s my answer to the fuse blowing must look at wiring when it"s drier. Thank you WallyH

18th November 2022, 16:36	#2
Matt_75 Gets stuck in 75 Saloon Join Date: Apr 2022 Location: North Somerset Posts: 549 Thanks: 13 Thanked 20 Times in 8 Posts	P0138 = O2 Sensor Circuit High Voltage (Bank 1, Sensor 2) P0341 = Camshaft Position Sensor Circuit Range/Performance P0141 = O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2) P0445 = Evaporative Emission Control System Purge Control Valve Circuit Shorted P0335 = Crankshaft Position Sensor “A” Circuit Malfunction (Bank 1) Looks like you might need a new oxygen sensor too but I'd start by checking for fuel and spark. Might be worth checking the cams and crank are in time still too.

18th November 2022, 16:39	#3
vitesse I really should get out more....... Rover 75 Saloon Join Date: Jul 2011 Location: Gävle Posts: 2,537 Thanks: 395 Thanked 823 Times in 652 Posts	Most of those relate to the oxygen sensors, but the interesting one is p0335 crankshaft sensor - does the rev counter needle move when the starter is engaged? Regards

19th November 2022, 06:44	#4
dave lincs Posted a thing or two Rover 75 Saloon Join Date: Mar 2014 Location: Louth Posts: 1,422 Thanks: 380 Thanked 986 Times in 476 Posts	Check engine management fuses in under bonnet fusebox for a start

19th November 2022, 15:44	#5
Jamiewelch Posted a thing or two Alpina D3 Join Date: Sep 2014 Location: Cheslyn hay Posts: 1,003 Thanks: 58 Thanked 294 Times in 227 Posts	Rear lamba sensor wiring is known to chafe on the exhaust heatshield. If the wiring to that sensor has been damaged and the power shorted to ground you won't have power to the lambda sensors, camshaft or crankshaft sensor under the bonnet. Check the under bonnet fuses.