why are my afr all over the place????
#1
why are my afr all over the place????
ive just recently got a iaw programme off motorsport developments and ive got a lm2 afr guage. I got the ratio to around 14.5 -15.0 on idle and its about the same on cruise maybe more 15.0 but when i boot the car insttead of heading down towards 11s-12s it goes up to about 17 what would cause this its doing my head in now?
#2
YES I KNOW I CANT SPELL
Join Date: Mar 2008
Location: chingford e4
Posts: 5,271
Likes: 0
Received 0 Likes
on
0 Posts
ive just recently got a iaw programme off motorsport developments and ive got a lm2 afr guage. I got the ratio to around 14.5 -15.0 on idle and its about the same on cruise maybe more 15.0 but when i boot the car insttead of heading down towards 11s-12s it goes up to about 17 what would cause this its doing my head in now?
Trending Topics
#8
YES I KNOW I CANT SPELL
Join Date: Mar 2008
Location: chingford e4
Posts: 5,271
Likes: 0
Received 0 Likes
on
0 Posts
well mate i have my lm-2 sitting in frount of me can you tell me where it says shove the sensor up the exaust it dosent matter weather its dash mounted or hand held he sensor is EXATLY the same as i have a dash mounted one as well. i think you need to learn how to use you equipment first imho..
#10
YES I KNOW I CANT SPELL
Join Date: Mar 2008
Location: chingford e4
Posts: 5,271
Likes: 0
Received 0 Likes
on
0 Posts
hear ya go hear is what the exaust bung looks like
the sensor screws into it and that the holds the sensor in the flow of exaust gases if it was flaping around in the exaust you will get a siiiiiite reading. ive found the exaust bung is shit with "big" tail pipes it will only give a good reading when the gases are flowing quick ie WOT ect ect i think air tends to waft into the tain pipe giving falce reading's i would defantly weld the bung into the down pipe (about 2 feet from the turbo) and see what happens then
the sensor screws into it and that the holds the sensor in the flow of exaust gases if it was flaping around in the exaust you will get a siiiiiite reading. ive found the exaust bung is shit with "big" tail pipes it will only give a good reading when the gases are flowing quick ie WOT ect ect i think air tends to waft into the tain pipe giving falce reading's i would defantly weld the bung into the down pipe (about 2 feet from the turbo) and see what happens then
#13
YES I KNOW I CANT SPELL
Join Date: Mar 2008
Location: chingford e4
Posts: 5,271
Likes: 0
Received 0 Likes
on
0 Posts
#15
I've found that life I needed.. It's HERE!!
iTrader: (3)
Join Date: Jun 2008
Location: north wales
Posts: 1,243
Likes: 0
Received 0 Likes
on
0 Posts
ive seen this sensor used on mapping rolling road cars first i would try putting it somewere in the front of the exhaust and if she's still saying 17's etc then she's running lean carefull of you might melt a piston i run a lm-1 and thats spot on
#16
I've found that life I needed.. It's HERE!!
Join Date: Nov 2004
Location: stoke-on-trent
Posts: 1,058
Likes: 0
Received 0 Likes
on
0 Posts
hang about, you pushed it up the exhaust and then put your foot down, how the heck did it not blow out the exhaust!! were you letting it bounce around in the backbox
Thread
Thread Starter
Forum
Replies
Last Post
nicodinho
Ford Non RS / XR / ST parts for sale.
6
07-10-2015 12:56 PM
rsguy
General Car Related Discussion.
44
29-09-2015 03:29 PM