Quote:
Originally Posted by CNGBiFuel
My theory:
You'll likely find your petrol consumption has gone down. These systems for reasons classicswede (the pro on here) may be able to detail better than me use some petrol even after switchover to gas. If you've cleaned out your dist, I wold guess you are no longer limiting the LPG, so it will take more LPG. Less petrol. I (tthink) many gas systms are designed to make up the performance shortfall, use some petrol under severe load or higher revs? This becasue the compression ratio is too low for gas to give best performance, but dictated by the requirement to burn petrol.
But I'm guessing here. I might be talking out of my rectal-passage. Er... classicswede?
If I'm right, and don't deny it (I've been to Rome), you'll need to stop driving like an lunatic Italian ... 
I have put a fuel pump relay cutout on my car to reduce petrol use on gas. Pressure in the fuel rail still stays high enough to start the car, and 'blows-down' the pressure a bit before switching to gas.
I often cut the relay before starting and still the car starts. I [think] I'm saving petrol..... |
You're perfectly right... But I drive lunatic exactly as before cleaning the distributor!!!!
Quote:
Originally Posted by classicswede
Petrol should not be neing used while running on gas however some modern system can blend but the Necam system is WAY too basic to do that.
The consumption could be down to the fact you are now spending much more time running on LPG than you had done before.
The other possible is that the injector cleaner used has clogged the Lambda sensor causing it to read week
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I thought about it, but at the beginning of this year I made an .xls file to compute the consumption of both fuels (taking separate count of km made at LPG and petrol... Yes, I know... I'm slightly crazy...) and the results speak clear: now the car consumes more.
I agree the lambda sond theory proposed by Classicswede , that's why, as soon as possible, I want to make an exhaust system cleaning (water aerosol ingestion).
By the way: can someone translate the name of the fluid mentioned at minute 02 and second 48 of the video i linked some posts ago?