air fuel gauge
13-07-2011, 09:54 PM
#1
Part of the Furniture
Thread Starter
iTrader: (1)
Join Date: Feb 2006
Location: evesham
Posts: 183
Likes: 0
Received 0 Likes
on
0 Posts
air fuel gauge
i have got a wideband afr gauge and i am running 18 psi of boost does anybody no what sort of readings i should be getting on idle and on boost cheers
Last edited by michaelward; 23-07-2011 at 04:17 PM.
18-07-2011, 08:06 PM
#5
I forget Rick, i'll have a boot into windows in a bit and have a look. What do you normally use alternating or simultaneous?
I **think** im on alternating with 2 squirt per cycle. I suspect i can get a lean cruise, its just the idle, i had a little play this evening and can get it to around 13.5-13.8 but after a rev it stalls, but i think an idle control valve would help here a lot.
Rob,
I **think** im on alternating with 2 squirt per cycle. I suspect i can get a lean cruise, its just the idle, i had a little play this evening and can get it to around 13.5-13.8 but after a rev it stalls, but i think an idle control valve would help here a lot.
Rob,
19-07-2011, 07:36 AM
#6
15K+ Super Poster!!
I forget Rick, i'll have a boot into windows in a bit and have a look. What do you normally use alternating or simultaneous?
I **think** im on alternating with 2 squirt per cycle. I suspect i can get a lean cruise, its just the idle, i had a little play this evening and can get it to around 13.5-13.8 but after a rev it stalls, but i think an idle control valve would help here a lot.
Rob,
I **think** im on alternating with 2 squirt per cycle. I suspect i can get a lean cruise, its just the idle, i had a little play this evening and can get it to around 13.5-13.8 but after a rev it stalls, but i think an idle control valve would help here a lot.
Rob,
Rick
19-07-2011, 09:22 AM
#7
Sorry Rick i don't follow, transient as in tps/map enrichment?
It doens't stall when i rev it with a lean(er) idle, I rev it, and as it settles back to idle it stalls... It doesn't like going below idle speed with a leaner mixture and just stalls. I had assumed it was because im not currently running an ISCV.
Im playing with idle advance settings so as it dips below its idle speed the mixture gets a little richer and i give it more advance...
What would you recommend sir, do you think my transients could still be cause for a weak idle? The engine also goes very lumpy with an unstable idle (with out reving etc) past 13.8, so in aiming for 14's and above at idle isn't possible at the moment
Rob,
It doens't stall when i rev it with a lean(er) idle, I rev it, and as it settles back to idle it stalls... It doesn't like going below idle speed with a leaner mixture and just stalls. I had assumed it was because im not currently running an ISCV.
Im playing with idle advance settings so as it dips below its idle speed the mixture gets a little richer and i give it more advance...
What would you recommend sir, do you think my transients could still be cause for a weak idle? The engine also goes very lumpy with an unstable idle (with out reving etc) past 13.8, so in aiming for 14's and above at idle isn't possible at the moment
Rob,
Trending Topics
19-07-2011, 08:42 PM
#10
15K+ Super Poster!!
I'm on track with Gary, the fiesta will be on the Ford fair stand so come and find us and I'll glady take a look. I find it very off that some cars are struggling to run lean. You are on MS2 Extra?
Rick
Rick
19-07-2011, 08:54 PM
#11
Cheers mate if i get my shit together and make it there it would be great if you had a look at it. Even if the car doesn't make it i'll pop over and say hi.
Its on MS2-extra yep, im just building up another ECU with the extra drivers for sequential which may help in the future, but as you say it SHOULD idle better (and leaner) than it does
Rob,
Its on MS2-extra yep, im just building up another ECU with the extra drivers for sequential which may help in the future, but as you say it SHOULD idle better (and leaner) than it does
Rob,
20-07-2011, 11:09 AM
#15
Is this a party i can crash or is it an MS only event...?
I may well be at FF this year!
I may well be at FF this year!
Rob,
Last edited by Rob_DOHC; 20-07-2011 at 11:12 AM.
20-07-2011, 08:03 PM
#17
15K+ Super Poster!!
25-07-2011, 09:05 AM
#18
God the OP's thread got raped...
Just a little update, my car still won't idle any leaner than around 13.5 BUT the stalling issues have been completely sorted, my transients were wrong (thanks very much Rick!!!), now the car revs and settles back down to a good idle.
Its driving really well now, just a few more miles and it can have some abuse
Rob,
Just a little update, my car still won't idle any leaner than around 13.5 BUT the stalling issues have been completely sorted, my transients were wrong (thanks very much Rick!!!), now the car revs and settles back down to a good idle.
Its driving really well now, just a few more miles and it can have some abuse
Rob,
Last edited by Rob_DOHC; 25-07-2011 at 10:14 AM.
Thread
Thread Starter
Forum
Replies
Last Post