Misfire and DMTL can i drive home?

techie182 · 11-07-2014, 11:09 PM

Currently out on roadtrip~ about 200 miles one way.
Got service engine soon and hard to speed up.
Drove for 10min and service light went away and car ran fine.
Ran the codes and got DMTL and cylinder misfire 1.
Im guessing plugs or coil for 29cd code and fuel pump for DMTL.
Can i drive my car back 200 miles back ? Parked car at camping site and cleared codes.
No service light and car idles and starts fine.
Going to drive around tonight and see if i get the codes again.
08 n52 at 87k miles. Still on factory plugs and coil

thomas88162 · 11-08-2014, 02:35 PM

As long as the misfire is not constant(preferably very occasional) , it would probably be fine.

Bavarian Tech · 11-08-2014, 03:03 PM

DMTL pump is emissions related, doesn't effect engine performance/driveabily. Cylinder misfire isnt a huge deal, the DME will cut power to the effected cylinder fuel injector so your not dumping raw fuel into the cat destroying it. BTW never hurts to carry an extra coil in the trunk just my thought

techie182 · 11-08-2014, 08:30 PM

Thx going to replace coil and plugs as soon as i get back. Will see if i get DMTL error after replacing them.
Thank god i dont have to pay $$ tow back 200 miles.

11-07-2014, 11:09 PM	#1
techie182 First Lieutenant 48 Rep 376 Posts Drives: 328i coupe Join Date: Mar 2009 Location: Sweet Home Alabama iTrader: (1)	Misfire and DMTL can i drive home? Currently out on roadtrip~ about 200 miles one way. Got service engine soon and hard to speed up. Drove for 10min and service light went away and car ran fine. Ran the codes and got DMTL and cylinder misfire 1. Im guessing plugs or coil for 29cd code and fuel pump for DMTL. Can i drive my car back 200 miles back ? Parked car at camping site and cleared codes. No service light and car idles and starts fine. Going to drive around tonight and see if i get the codes again. 08 n52 at 87k miles. Still on factory plugs and coil
	Appreciate 0 Tweet Quote

11-08-2014, 02:35 PM	#2
thomas88162 Lieutenant 19 Rep 595 Posts Drives: E92 328i Join Date: Jun 2013 Location: Clinton, IN iTrader: (0)	As long as the misfire is not constant(preferably very occasional) , it would probably be fine.
	Appreciate 0 Quote

11-08-2014, 03:03 PM	#3
Bavarian Tech Major 267 Rep 1,203 Posts Drives: 335i Join Date: Jan 2007 Location: Pittsburgh/Harrisburg iTrader: (15) Garage List 2006 330i [10.00]	DMTL pump is emissions related, doesn't effect engine performance/driveabily. Cylinder misfire isnt a huge deal, the DME will cut power to the effected cylinder fuel injector so your not dumping raw fuel into the cat destroying it. BTW never hurts to carry an extra coil in the trunk just my thought
	Appreciate 0 Quote

11-08-2014, 08:30 PM	#4
techie182 First Lieutenant 48 Rep 376 Posts Drives: 328i coupe Join Date: Mar 2009 Location: Sweet Home Alabama iTrader: (1)	Thx going to replace coil and plugs as soon as i get back. Will see if i get DMTL error after replacing them. Thank god i dont have to pay $$ tow back 200 miles.
	Appreciate 0 Quote