Mil Codes P0172 & P0300 Plus misfire - Page 2

Simon.h · 4th August 2011, 16:34

Does all your spark plugs have the right gap?

ratc69 · 5th August 2011, 16:53

Hi Everyone thanks for your responses we think the problem was down to a corroded wire in a multi plug and a corroded earth. We have been running the car since coming back from the garage yesterday so fingers crossed.

Once again thanks,

Rob

Simon.h · 5th August 2011, 17:08

Hope it is!

I said check the wiring!

Customs Inc · 5th August 2011, 17:43

I was just going to post to say check the plug lead order on the front bank, but see you have it sorted.

I get these codes come in a lot when another garage has either done a HG-change or just replaced the plugs/leads as they think the coil packs are located in the same order as the plugs, i.e. from the belt side 1,3,5 when the coil packs are actually located as 3,1,5.

HTH helps for future reference as a lot of the time by the time the cars come to me the other garages have been running them for so long trying to locate the misfire they've also knackered the cat!

4th August 2011, 16:34	#11
Simon.h This is my second home Previously owned- MG ZT V6 160 Y plate Lpg, MG ZT 190 2003 In Rare Celestial Factory Ordered Lpg MG Join Date: Mar 2010 Location: Calne Posts: 4,531 Thanks: 8 Thanked 116 Times in 108 Posts	Does all your spark plugs have the right gap? __________________ Previously owned- MG ZT V6 160 Y plate Lpg, MG ZT 190 2003 In Rare Celestial Factory Ordered Lpg MG ZT 190 2004 lpg

5th August 2011, 17:08	#13
Simon.h This is my second home Previously owned- MG ZT V6 160 Y plate Lpg, MG ZT 190 2003 In Rare Celestial Factory Ordered Lpg MG Join Date: Mar 2010 Location: Calne Posts: 4,531 Thanks: 8 Thanked 116 Times in 108 Posts	Hope it is! I said check the wiring! __________________ Previously owned- MG ZT V6 160 Y plate Lpg, MG ZT 190 2003 In Rare Celestial Factory Ordered Lpg MG ZT 190 2004 lpg

5th August 2011, 17:43	#14
Customs Inc Loves to post '01 Conn Se Raven Black tourer, 2000 2.5 Classic grey saloon Join Date: Aug 2009 Location: Sheffield Posts: 255 Thanks: 0 Thanked 0 Times in 0 Posts	I was just going to post to say check the plug lead order on the front bank, but see you have it sorted. I get these codes come in a lot when another garage has either done a HG-change or just replaced the plugs/leads as they think the coil packs are located in the same order as the plugs, i.e. from the belt side 1,3,5 when the coil packs are actually located as 3,1,5. HTH helps for future reference as a lot of the time by the time the cars come to me the other garages have been running them for so long trying to locate the misfire they've also knackered the cat! __________________ Customs Inc, MG Rover Enthusiast since '83.

5th August 2011, 16:53	#12
ratc69 Regular poster MGZT 160 Join Date: Jul 2011 Location: Plymouth Posts: 34 Thanks: 0 Thanked 0 Times in 0 Posts	Hi Everyone thanks for your responses we think the problem was down to a corroded wire in a multi plug and a corroded earth. We have been running the car since coming back from the garage yesterday so fingers crossed. Once again thanks, Rob