I have a palio 1.2 ELX 02′ model, and used it with LPG kit for abt 15k kms, ODO reads abt 54K, i recently decided to install a lambda control system for the LPG kit, so as to reduce the frequent visits to tuner (the lpg tuning goes haywire very often)
I procured a lambda control system unit from Sharon Autogas, Hyd (they sent it through courier to bangalore), I took it to the installer here in BLR (on lalbag road). This guy first was confused with the lambda sensor and cut open all the 4 wires that it had, and had tough time figuring out what exactly is the lambda signal wire out of the 4 wires coming from lambda sensor.
He wired it wrongly and packed up the whole thing with a tape, and starts tuning without even reading the manual that came with the kit !! :Frustrati
obviously the tuning isnt successful, and I along with a friend had to spend time understanding the manual and tried tuning it again, but unsuccessful, coz the wiring was not right.
Next day, I go back to the installer, open up the four wires of the lambda sensor, and see a black wire & 3 white wires. The black wire is the lambda signal wire, coz that is what varies with throttle input and i wire the lambda probe to this black wire, and wire up the rest of the wires as they shud be (stock). Now, when I run in petrol, the car runs just fine, no issues.
but in LPG, I am not able to accelerate from idling, I press the accl pedal, but it is as though the car is running out of gas, jerking and doesnt pick up !! I come back to neutral, accelerate to higher rpm, and change gear to 1st, and pick up. Once after the pick up, the car runs fine till another such scenario comes up ! Happens in almost every gear, if i slow down and reduce the rpm.
What could be the problem ?? I checked in concorde motors with a diag tool, In petrol, lambda shows lean mix and in lpg lambda shows optimum mix !!
I try to tune the unit again and again, but it either doesnt get tuned or something else is wrong with it … Can you guys plz guide me through this ?