new battery no start plz help!!

[Trptguy]

ok tried everything, fuse is good....connections seem good and tight....sigh

[Gregs///M]

Make sure your engine ground is in good condition and clean and secure. It runs from the oil pan to the frame rail on the drivers side. It is the engine ground for all engine electronics including the starter.

[Trptguy]

what does the eingine ground look like

[Cabriolet]

it's a 6" wire that runs from the front of your oil pan to the driver's side of the car.

im thinking something else is wrong tho. like did you try jummping your car from another car with this battery connected?

[Trptguy]

it's a 6" wire that runs from the front of your oil pan to the driver's side of the car.

im thinking something else is wrong tho. like did you try jummping your car from another car with this battery connected?

i did that with the last battery that was dead........what is wrong with that???

[dnguyen1963]

i did that with the last battery that was dead........what is wrong with that???

It could be this...

CAUTlON
On models equipped with on-board computers,
remove the computer fuses (fuse no. 1 0, 12, 21,
and 27) prior to quick-charging to prevent damaging
the computer.

[Trptguy]

It could be this...

CAUTlON
On models equipped with on-board computers,
remove the computer fuses (fuse no. 1 0, 12, 21,
and 27) prior to quick-charging to prevent damaging
the computer.

ok so let's say I damaged the OBC, wouldn't the fuses also be blown?? Which they aren't BTW.

Just so no one thinks I am being an ass, I do appreciate all of the help so far!!!!

[dnguyen1963]

Actually, it is the opposite of what you think. If all of your fuses stay intact, your OBC would be dead because there might be too much current flowing through them during a jump start. I have not had this happened to me so do not quote me for this, but I have heard that a dead OBC can prevent the car from starting. There must be a very good reason for Bentley to recommend the removal of fuses during jump start.

[Trptguy]

Actually, it is the opposite of what you think. If all of your fuses stay intact, your OBC would be dead because there might be too much current flowing through them during a jump start. I have not had this happened to me so do not quote me for this, but I have heard that a dead OBC can prevent the car from starting. There must be a very good reason for Bentley to recommend the removal of fuses during jump start.

shit! ok then i will check the OBC.....anyone got one for sale?

[Trptguy]

another question, can i bypass the obc???

[Cabriolet]

shit! ok then i will check the OBC.....anyone got one for sale?

the brain will be specific to your year and engine. there is a sticker on the underside of it. it will say XXXXXXXXXX then three digits like 173 or 143 u will need that info when replacing it

[Trptguy]

the brain will be specific to your year and engine. there is a sticker on the underside of it. it will say XXXXXXXXXX then three digits like 173 or 143 u will need that info when replacing it

wait isn't that the ECU???

[Cabriolet]

wait isn't that the ECU???

oh im not sure which one is dead for you. there are also 3-4 types of OBCs

[Trptguy]

is the OBC absolutely necessary???

[jlevie]

Neither the OBC nor the DME would affect most of the dash lights nor would they affect the rest of the car's lights. From the OP it sounds like battery power isn't reaching the car. Verify the battery's charge level (12.6-12.7v on a fully charged battery) at the battery posts. Then compare that to what you read from the battery positive to chassis ground. That is a check of the ground connection and should be the same as measured across the battery. From there start probing the primary power connections.