fixer982
4th July 2011, 10:15 PM
My GU TB45e Dual Fuel Patrol has a Peel CP30 safety Switch. The "Neg Coil" terminal has always had a wire which had a few turns wrapped around the number 6 plug lead and I always presumed that this was supposed to be that way. The car developed a peculiar misfire on both petrol and LPG, so after new plug leads, plugs, oxygen sensor, distributor cap, rotor and setting the tappets without a result, I weakened and took it to a mechanic in Adelaide who came recommended by another 4x4 driver. It cost me $210 to tell me I had not missed anything and that they thought it had either a broken valve spring of a bent pushrod but couldn'ty tell me more without removing the rocker cover.
I took the rocker cover off and did the tappets again (thanks to Patch697 for how to do it) and could see nothing wrong with either though I am not an expert. I have been musing over this for a few days and tonight I went out and took the wire from around the plug wire. Presto, the miss is now gone. Now I am worried that it might stop suddenly if this device decides to turn the gas off. Does anyone with the knowledge now why this thing could cause the miss and is it essential to the running? If so, where does this "Neg Coil" wire go on a GU Patrol with electronic ignition?
I took the rocker cover off and did the tappets again (thanks to Patch697 for how to do it) and could see nothing wrong with either though I am not an expert. I have been musing over this for a few days and tonight I went out and took the wire from around the plug wire. Presto, the miss is now gone. Now I am worried that it might stop suddenly if this device decides to turn the gas off. Does anyone with the knowledge now why this thing could cause the miss and is it essential to the running? If so, where does this "Neg Coil" wire go on a GU Patrol with electronic ignition?