Yes I did check the braid itself to ground and yes its grounded. The center
wire is clean until I turn the key on and I get .5 volts. I put one lead on
the braid and one test lead on the block and I get an almost solid short.
Where does this braid get its ground from? ie..where is the ground point for
it? I did notice a small brown ground wire coming off the computer and I
cleaned that up when doing my inital assesment...Thanks for the help so far.
Please keep it coming.

A.

On Thu, Jun 18, 2009 at 4:11 PM, mark drillock <mdrillock@cox.net> wrote:

> But did you check that the braid itself is grounded to the block? It must
> be grounded for the O2 system to work.
>
> The center wire must never be grounded and the braid must always be
> grounded.
>
> Mark
>
>
> Amy Miner wrote:
>
>> What concerns me is that when the motor is fully warmed up and I touch the
>> center which had .5 volts on it to ground nothing changes. I did check the
>> wire and there is no ground on it with a ohm meter. I checked to ground on
>> the block and checked to the braid around the coax and there is no short
>> to
>> ground. The injectors have all been pro cleaned before I installed them. I
>> tried to pull plug wires at idle and each one changes the way the motor
>> runs
>> very little. I have a fuel pressure gauge and I will check that tonight.
>> At
>> idle is appears to run okay but when I rev the motor I get puffs of black
>> soot. Even leaves little black specs on the ground. I am just trying to
>> figure out what would make the motor get "stuck" in what appears to be a
>> cold running mode. Would to much fuel make the van lose power while
>> driving?
>> I also checked the oil and it still looks/smells clean. Doesn't appear to
>> have fuel in it. I'll report back on the fuel pressure later,I'll check
>> all
>> grounds again,pull the plugs and look at them.
>> Will look back here for more suggestions when I get home before I start
>> working on it tonight
>> so please keep the suggestions coming. I'd like to get this sorted out
>> before my husband gets home from work this weekend.
>>
>> A.
>>
>