Petrol V6 (LPG) Lambda sensor

Technical questions and answers about the Mazda Bongo

Moderators: Doone, westonwarrior

Locked
Rogerrust
Junior Bongonaut
Posts: 24
Joined: Sat Apr 06, 2013 7:35 am

Petrol V6 (LPG) Lambda sensor

Post by Rogerrust » Mon Aug 19, 2013 7:23 am

My V6 is a bit flat going up hill but fine on the flat. When I had it converted to LPG the installer said the Lambda sensor wasn't working. Do you think the two are connected? If so where can I get the sensor? and will it need programming when its fitted? I get about 20mpg on gas and 24 mpg on petrol.

thanks in advance
User avatar
haydn callow
Supreme Being
Posts: 5777
Joined: Mon Jan 08, 2007 9:50 pm
Location: Somerset
Contact:

Re: Petrol V6 (LPG) Lambda sensor

Post by haydn callow » Mon Aug 19, 2013 9:58 am

Those mpg numbers sound about right.
http://www.coolantalarm.co.uk
Developer of the Mazda Bongo Coolant loss Alarm
Also BMW Clocks
User avatar
haydn callow
Supreme Being
Posts: 5777
Joined: Mon Jan 08, 2007 9:50 pm
Location: Somerset
Contact:

Re: Petrol V6 (LPG) Lambda sensor

Post by haydn callow » Mon Aug 19, 2013 10:01 am

Check every ignition lead consent rating on the thicker parts that go over the spark plugs.....look for any cracking....your ignition system needs to be 100% for the LPG to run smooth....
http://www.coolantalarm.co.uk
Developer of the Mazda Bongo Coolant loss Alarm
Also BMW Clocks
User avatar
mikeWalsall
Supreme Being
Posts: 3075
Joined: Thu Sep 01, 2011 7:11 pm
Location: Walsall West Midlands

Re: Petrol V6 (LPG) Lambda sensor

Post by mikeWalsall » Mon Aug 19, 2013 10:11 am

My V6 is LPG ..

I have recently put in new plugs .. a dizzy cap .. rotor and leads on my V6 and the change is remarkable ..

Walsall is in a 'dip' .. the only way out is up an hill .. !!

I have found the V6 engine is not a really a 'slogger' ... rather than just giving it more throttle I tend use the hold button to knock the 'overdrive' off as needed to keep the engine spinning freely ..
JAL Mushroom roof,12/240v, fridge, cooker, sink, LPG V6 .. (written off @ £5500 Nov 2016)
Rogerrust
Junior Bongonaut
Posts: 24
Joined: Sat Apr 06, 2013 7:35 am

Re: Petrol V6 (LPG) Lambda sensor

Post by Rogerrust » Mon Aug 19, 2013 6:54 pm

So. Any ideas for where to get the Lambda sensor. When I bought the bongo 8 months ago it had more ymphh (I have replaced the plugs and leads earlier this year
User avatar
mikeWalsall
Supreme Being
Posts: 3075
Joined: Thu Sep 01, 2011 7:11 pm
Location: Walsall West Midlands

Re: Petrol V6 (LPG) Lambda sensor

Post by mikeWalsall » Mon Aug 19, 2013 8:03 pm

If you use "search" .. http://www.igmaynard.co.uk/bongo/forum/search.php .. There have been a few posts on Lambda sensor problems .. some guys have used eBay 'pattern parts' with good results ..
JAL Mushroom roof,12/240v, fridge, cooker, sink, LPG V6 .. (written off @ £5500 Nov 2016)
Ian
Supreme Being
Posts: 5996
Joined: Wed Jun 09, 2004 2:47 pm
Location: Bongo Mission Control

Re: Petrol V6 (LPG) Lambda sensor

Post by Ian » Mon Aug 19, 2013 8:24 pm

Rogerrust wrote:So. Any ideas for where to get the Lambda sensor. When I bought the bongo 8 months ago it had more ymphh (I have replaced the plugs and leads earlier this year
We have genuine (expensive!) Mazda ones here at the Bongo Shop, in the "Miscellaneous" section.
668. The Neighbour of The Beast.
Luke and Debs
Bongolier
Posts: 164
Joined: Tue Jul 05, 2011 10:27 pm
Location: South Wonston, Winchester

Re: Petrol V6 (LPG) Lambda sensor

Post by Luke and Debs » Mon Aug 19, 2013 9:13 pm

on v6 lpg they are not the best at getting up hills. i noticed a drop off. you mpg sounds right i get 25-27 on petrol and 22-23 on lpg. fine on flat or down hill but lacks a bit but it is a full side convertion with load.

they are not the best tuned engine

luke
Luke (V6 and LOVING IT)
Rogerrust
Junior Bongonaut
Posts: 24
Joined: Sat Apr 06, 2013 7:35 am

Re: Petrol V6 (LPG) Lambda sensor

Post by Rogerrust » Wed Aug 21, 2013 6:23 pm

OK yesterday I unpugged the sensor took it off to read the numbers on it then put it back and plugged it back in.

And ... :D a sudden and definate improvement in acceleration and much keener to rev when asked to. So either a poor connection or taking it out and putting it back has improved the connection. Either way musn't grumble!! :D
Locked

Return to “Techie Stuff”