Discussion
Hi mate..Im on the understanding that the injectors are set to a particular pressure and you are limited by a pre-fixed FPR that delivers 2.5bar of pressure..Unless you have an adjustable FPR like i have.
Also as i understand it the pressure will increase and the amount of fuel would increase when the injectors are opened at the timed position..My fuel pressure is set to 2.7 bar which should be ok if you need it..At some stages it has been up as high as 3 bar but this was with a flushing with petrol injector cleaner and was brought down again..When the pressure was set to 3 bar on the Dyno it showed a reading of 14%..I think it should be around 11?...
There is an air screw on the AFM but i wouldn't touch it myself...Why do you need to adjust your mixture?...Ziga
Also as i understand it the pressure will increase and the amount of fuel would increase when the injectors are opened at the timed position..My fuel pressure is set to 2.7 bar which should be ok if you need it..At some stages it has been up as high as 3 bar but this was with a flushing with petrol injector cleaner and was brought down again..When the pressure was set to 3 bar on the Dyno it showed a reading of 14%..I think it should be around 11?...
There is an air screw on the AFM but i wouldn't touch it myself...Why do you need to adjust your mixture?...Ziga
Hi mate..I believe that the screw on the plenum is the idle screw which increases or decreases the amount of air to fuel.
Im not 100% as to the official workings of the AFM but as i understand it that controls the signal to the ECU for the fuel and its backed up by the TPS.
I guess that is the point of fuel mixture as the flap is measuring the amount of air coming in and sending a signal to the injectors via the ECU..I should imagine it will mess up the idling and fuelling at idle.
You must forgive my limited knowledge as I'm still trying to understand it all myself...I think...
Im not 100% as to the official workings of the AFM but as i understand it that controls the signal to the ECU for the fuel and its backed up by the TPS.
I guess that is the point of fuel mixture as the flap is measuring the amount of air coming in and sending a signal to the injectors via the ECU..I should imagine it will mess up the idling and fuelling at idle.
You must forgive my limited knowledge as I'm still trying to understand it all myself...I think...
adam quantrill said:
You need ebay item 350563225979... or 321414263449 - this one is just like mine. Still working after 20 years...
I just looked at the ebay item and i have one of those but i aint got a clue how to use it...
The confusing thing for me was the dial that initially i thought was for number of cylinders but it went up to odd numbers so i take it that means the stroke?....
It's quite easy...
1. Get engine warmed up and idling.
2. Put tester in position but not the pipes.
3. Connect tester to battery
4. Adjust tester knob so 2.0 comes up on the display.
5. Leave for 2-3 minutes.
6. Re-adjust for 2.0 and then stick the pipe up the 'zorst.
The tester will now show the CO in %.
If you don't have the instruction booklet I can scan mine in and email it.
1. Get engine warmed up and idling.
2. Put tester in position but not the pipes.
3. Connect tester to battery
4. Adjust tester knob so 2.0 comes up on the display.
5. Leave for 2-3 minutes.
6. Re-adjust for 2.0 and then stick the pipe up the 'zorst.
The tester will now show the CO in %.
If you don't have the instruction booklet I can scan mine in and email it.
adam quantrill said:
It's quite easy...
1. Get engine warmed up and idling.
2. Put tester in position but not the pipes.
3. Connect tester to battery
4. Adjust tester knob so 2.0 comes up on the display.
5. Leave for 2-3 minutes.
6. Re-adjust for 2.0 and then stick the pipe up the 'zorst.
The tester will now show the CO in %.
If you don't have the instruction booklet I can scan mine in and email it.
Hi Mate..Done all that and i do have the book but it doesn't say what to set the other knob to, The one with the cylinders or stroke on it..My unit is slightly different from the one shown but its a green Gunson gas analyser... 1. Get engine warmed up and idling.
2. Put tester in position but not the pipes.
3. Connect tester to battery
4. Adjust tester knob so 2.0 comes up on the display.
5. Leave for 2-3 minutes.
6. Re-adjust for 2.0 and then stick the pipe up the 'zorst.
The tester will now show the CO in %.
If you don't have the instruction booklet I can scan mine in and email it.
adam quantrill said:
It's quite easy...
1. Get engine warmed up and idling.
2. Put tester in position but not the pipes.
3. Connect tester to battery
4. Adjust tester knob so 2.0 comes up on the display.
5. Leave for 2-3 minutes.
6. Re-adjust for 2.0 and then stick the pipe up the 'zorst.
The tester will now show the CO in %.
If you don't have the instruction booklet I can scan mine in and email it.
Nice one Adam, may contact ya if I do this, if that's ok? 1. Get engine warmed up and idling.
2. Put tester in position but not the pipes.
3. Connect tester to battery
4. Adjust tester knob so 2.0 comes up on the display.
5. Leave for 2-3 minutes.
6. Re-adjust for 2.0 and then stick the pipe up the 'zorst.
The tester will now show the CO in %.
If you don't have the instruction booklet I can scan mine in and email it.
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