Psi3 unit - what does your say
29 February 2004 | 11:44 PM
#1
Psi3 unit - what does yours say
like a fool, i have the unit but im not 100% sure on what figures i should be seeing
really would like to know what people are getting for the AFR, KC and ID
Cheers
Rich
really would like to know what people are getting for the AFR, KC and ID
Cheers
Rich
Last edited by WRX_Rich; 01 March 2004 at 12:49 AM.
01 March 2004 | 12:15 AM
#2
Scooby Regular
Joined: Jan 2002
Posts: 1,125
Likes: 0
From: Herts
KC is zero unless under heavy load and then reads between 0 and 8.
AFR normally reads about 1.0...dropping to 0.8 under load and 1.6 on throttle lift off.
ID varys between 3ms and somehwere near 12ms i think.
AFR normally reads about 1.0...dropping to 0.8 under load and 1.6 on throttle lift off.
ID varys between 3ms and somehwere near 12ms i think.
Last edited by elgordano; 01 March 2004 at 12:15 AM. Reason: spelling
01 March 2004 | 08:02 PM
#4
Cheers guys this is all to do with my on going saga with my tek 3 - My KC is hitting 10 and the amber light is lighting regualy during WOT on the knock link and yet the mapper still says it is fine and just to ignor it
Im just interestead to see what others are getting the more I get the better
Im just interestead to see what others are getting the more I get the better
01 March 2004 | 11:18 PM
#6
the car hasn't gone bang and he probably is right (he has been about everything else)
he did mention to change the sensitivity - I think i ve got a touch of the scoobynet Syndrome, I fix computers and theres nothing worse than when someone who thinks they know a thing or two tries to tell you how to do something you do evey day and im sure its the same for him.
I think i might bite the bullet and get a second opinion / remap just for my own peice of mind, Once i get one of the top guys to look, my mind will be at rest - and the money I have saved using this mappers garage will pay for the remap
he did mention to change the sensitivity - I think i ve got a touch of the scoobynet Syndrome, I fix computers and theres nothing worse than when someone who thinks they know a thing or two tries to tell you how to do something you do evey day and im sure its the same for him.
I think i might bite the bullet and get a second opinion / remap just for my own peice of mind, Once i get one of the top guys to look, my mind will be at rest - and the money I have saved using this mappers garage will pay for the remap
01 March 2004 | 11:26 PM
#7
Scooby Regular
Joined: Apr 2002
Posts: 7,333
Likes: 0
From: Bournemouth - 5x Ex Impreza owner. 997 GT3 CS.
Hmm, it should always be at max sensitivity and any activity should never be ignored. You've got the PSI saying its retarding ignition and the KL display lighting up? What does your head tell you? 
I would ring someone like Bob R and see what he says, I think I know the answer though.
MB
I would ring someone like Bob R and see what he says, I think I know the answer though.
MB
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01 March 2004 | 11:28 PM
#8
Scooby Regular
Joined: Apr 2002
Posts: 7,333
Likes: 0
From: Bournemouth - 5x Ex Impreza owner. 997 GT3 CS.
Just to add, repeated amber lights wont make it go bang instantly, but it will after a while, as you will be experiencing some form of mild - not good pre detonation.
You need det cans on there really, but the KL rarely lies if used as a guide.
MB
You need det cans on there really, but the KL rarely lies if used as a guide.
MB
02 March 2004 | 01:07 AM
#11
Guest
Posts: n/a
WRX Rich
Bob Rawle mapped my car...
Which I think says it all
The SECS is a nice bit of kit but I'm still confused by what goes on when it looks at the ECU while driving... The AFR should always hunt around 1.00 which is stoichimetric AFR giving good emissions...great when driving normally off boost..and very economical. The Lambda sensor looks at the exhaust gasses and the ECU messes about to get the fuel just right.. "Closed loop"
When overtaking a lorry on the A69 in a bit of a hurry (like today) it needs to wake up a bit and switches to "open loop" where it looks at a "MAP" of fuel, ignition, boost to get the best out of the situation and the Scooby takes off like a rocket in safety.....here is where I say thanks Bob Rawle for all that power at the right time without the engine going BANG
Back to the SECS....
AFR should be about 1.00 when driving normally, It's difficult to look at the SECS AFR during spirited driving but have seen 0.7 (rich).
The Knock Correction I also find difficult to decipher as it is not the correction the ECU is seeing due to activity of the OEM Knock sensor. When Bob mapped the car with Det cans there was no knock activity !! John Banks posted a neat reply but I can't search at the moment.
Injector duration...... Hmmm... Tricky one as injectors can spray the fuel AFAIK onto a closed valve so injector "duty" can be over %100......
Not much help.....sorry
Midlife.....
Bob Rawle mapped my car...
Which I think says it all The SECS is a nice bit of kit but I'm still confused by what goes on when it looks at the ECU while driving... The AFR should always hunt around 1.00 which is stoichimetric AFR giving good emissions...great when driving normally off boost..and very economical. The Lambda sensor looks at the exhaust gasses and the ECU messes about to get the fuel just right.. "Closed loop"
When overtaking a lorry on the A69 in a bit of a hurry (like today) it needs to wake up a bit and switches to "open loop" where it looks at a "MAP" of fuel, ignition, boost to get the best out of the situation and the Scooby takes off like a rocket in safety.....here is where I say thanks Bob Rawle for all that power at the right time without the engine going BANG
Back to the SECS....
AFR should be about 1.00 when driving normally, It's difficult to look at the SECS AFR during spirited driving but have seen 0.7 (rich).
The Knock Correction I also find difficult to decipher as it is not the correction the ECU is seeing due to activity of the OEM Knock sensor. When Bob mapped the car with Det cans there was no knock activity !! John Banks posted a neat reply but I can't search at the moment.
Injector duration...... Hmmm... Tricky one as injectors can spray the fuel AFAIK onto a closed valve so injector "duty" can be over %100......
Not much help.....sorry
Midlife.....
02 March 2004 | 01:21 AM
#12
thanks midlife - im sure im not the only one out there who looks at all these figures but really dosn't have a clue, but at least all the gadgets look great at night
09 March 2004 | 06:40 PM
#15
for any one who has followed my problems with my ecu tek - problems are now real
took the car to a well respected mapper, took the car for a run and yes it is detting, nothing major and using booster would probably sort it out BUT what do you do, he said it is, the knocklink says it is but my mapper said it will be fine after (4/5 trips back)
well hands going in the pocket and getting it done again
I ve got the liscenc so it won't cost me the full wack)
so my advice to every one is a TEK 3 is only as good as the person who maps it
took the car to a well respected mapper, took the car for a run and yes it is detting, nothing major and using booster would probably sort it out BUT what do you do, he said it is, the knocklink says it is but my mapper said it will be fine after (4/5 trips back)
well hands going in the pocket and getting it done again
I ve got the liscenc so it won't cost me the full wack)so my advice to every one is a TEK 3 is only as good as the person who maps it
09 March 2004 | 09:39 PM
#16
Scooby Regular
Joined: Aug 2003
Posts: 285
Likes: 0
From: Essex
Originally Posted by elgordano
KC is zero unless under heavy load and then reads between 0 and 8.
AFR normally reads about 1.0...dropping to 0.8 under load and 1.6 on throttle lift off.
ID varys between 3ms and somehwere near 12ms i think.
AFR normally reads about 1.0...dropping to 0.8 under load and 1.6 on throttle lift off.
ID varys between 3ms and somehwere near 12ms i think.
The KC figure shows both Advance (just normal numbers) and Retart (i think it puts a minus before it allthough dont quote me on it)
So if you have anything under boost like 8 or 10 or 12 then its advancing the ignition, I know my Sti8 PPP feels a lot faster when its showing 10 or even 12 on the KC figure when under load... I seem to remember Mike Wood saying that it should show anything up to 12 on a Sti8 PPP in another thread somewhere! the higher the number the happier the ECU is and gives you more advance and more boost!
Obviously after remap ya gotta be sure what the car is doing. and knocklinks are essential! just have to get mine before I go tek 3 route.
09 March 2004 | 10:45 PM
#17
Scooby Regular
Joined: Apr 2002
Posts: 7,333
Likes: 0
From: Bournemouth - 5x Ex Impreza owner. 997 GT3 CS.
Rich, that really is crap and I personally think you should name and shame the person who advised you. There's a lot of this going on at the mo it seems.
Ok, in this case it was mild det, but would they still have ignored it if it was showing amber or worse? If you hadn't posted on here, it would seem reasonable to expect that eventaully it would have gone bang....
MB
Ok, in this case it was mild det, but would they still have ignored it if it was showing amber or worse? If you hadn't posted on here, it would seem reasonable to expect that eventaully it would have gone bang....
MB
09 March 2004 | 11:52 PM
#18
mild det, and when Bob checked the car with cans said he thought it should have been showing as red, sure as sure when we got back and checked the knocklink the red LED was not working, so one batch of dodgy sul and a hotday, I could have been really f**ked
trust me, i have learned from my exersise and if i see any one else in the same position i will tell them the story, I am not one to shout off on a public forum about a firm and how bad they are BUT scoobyL if your car has had a ecu tek I sure hope you have a knocklink
trust me, i have learned from my exersise and if i see any one else in the same position i will tell them the story, I am not one to shout off on a public forum about a firm and how bad they are BUT scoobyL if your car has had a ecu tek I sure hope you have a knocklink
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