COLEYST200

iTrader: (3)

Come on then lads wot readings do you lot think a stack AFR gauge should be showing

1. tick over ..............cold..?
2. tick over ..............hot...?
3. driving 3,000rpm............?
4. no boost......................?

HockeyNomad

I can tsay exactly what AFR's you will see, but on cold start it will be quite rich, but depends on map tbh,

warm tick over should be around lambda 1 or 14.5 AFR
driving at 3000 rpm, i assume you mean part throttle cruising on a motor way etc, then i would expect around 14.5

no boost? i assume you are referring to wide open throttle acceleration before the tubo boost threshold, this again should be around 14 AFR maybe a little richer, but as boost builds it should get richer in line with boost increase, down to as low as 11:1AFR but around 12.5 - 11 AFR i would expect to see on boost,


all mapping dependant really but hope this is enough of a guide for you.

105epwr

what he said!

COLEYST200

iTrader: (3)

Thanks for that we are not fare out with wot you are saying with the way the car is set up now . but to start with it was way out . we got the car started and got it warm and we had 11/11.2 on tick over so we set the ECU up to 14 and wot a different car to drive

Thanks for the in put lads

rich123

iTrader: (3)

same as above y whats urs reading?

COLEYST200

iTrader: (3)

well iv just started the car from cold and these photo,s are wot i have at the mo







Then i left it to warm up for a bit 80*c

mechanic28

iTrader: (5)

whats it doing on full boost/load?

Martin-Hadland

iTrader: (2)

.

Your car would have left me with sane afr readings so if they have changed then so has something else!

COLEYST200

iTrader: (3)

As you say mart it would of been right when you put the chip and injectors ansd put the sniffer up the pipe . but over xmass we put a swedish plenum on it and it had a very bad back fire when on boost . so we put REX,s AFR up the pipe and re set it up but to be onist its been running like a pig and when its cold it back fires and so i new it was all over the shop . MART im going to send you a PM