Thread: LPG on P38 backfiring...

Deano in my experience over the past 8 years of ownership I can assure you these cars do not like iffy batteries.....I have changed mine a few times and on each occasion the electrics were haywire, from gearbox fault to lights. See how you go with the new battery....."oh and get a good one".....The one I currently have is Optima , some prefer others but this one has been excellent.

thanks daf11e, i am hoping this is the case, i will keep an eye out for that brand. My brother has a friend who sells Turbo batteries and from his experience they are really good too.

Yep, Put a new battery in first, then look for other electrical problems.
P38's are most likely voltage sensitive so if the battery is low you are likely to get many problems

Ill back that up!
My vehicle had exactly those symptoms with an old battery after purchase. Asked the fine men of this forum who all said fit a decent battery that holds all its power. I did and no more ghost faults.
Good Luck

Bp38

Also check the earth points, especially the one to the chassis on the shock turret and the one from there to the block.

There was a LR service bulletin about these earth points and the ECU one under the back of the drivers seat

Steve

thanks, Bruce P38, thetree and ian4002000, I replaced battery yesterday and also took earth off strut tower and cleaned up joint. It looked fine but now better. I have not yet looked at earth under seat as was too dark but that is next. I started and got no faults but as soon as i flashed high beams i got a gearbox fault again. also when i put my foot on brakes the lights all dim. I checked alternator and is all good at 13.88 volts when running..kind of hoping the earth under seat is it. Anything else i should look for guys?

thanks again.

Deano there is a great. Electrical checklist on RRNet ...p38 electrical sticky...it covers,common symptoms,battery test,check charge circuit with no load,check charge circuit with full load,check cables for voltage drop,check alternator.etc etc...I believe it is a great way to methodically check everything....that's what I would do next IMHO.

Hey daf11e, thanks man, I just found the page today at work. I will go through it all, step by step. I'm on my second alternator so far so hope that's not the issue, anyway, we will soon see.

Cheers.