My 3.9 V8 Mk3 Capri

[Tony C]

Cheers Rob,
I doubt i would of got this far this quick without Davids help.

Quite looking forward to Sunday now at the Fast show weather permitting,
So if you need any more data done after any tweaking you have in mind David tomorrow is our last run before the car is to the track mate.

[Tony C]

right went and fired the car up, not touched any settings from yesterdays log i posted,
changed the nitrous to 150bhp shot,
took car for a run on gas, turned gas off, and now ecu is running lean, any ideas.??
log here, (this is without gas) today.
http://www.v-8.org.uk/zipfiles/log08_03_08.zip

and yesterdays,
http://www.v-8.org.uk/zipfiles/log07_03_08.zip

[rob@vems.co.uk]

I'd be more worried about finding what's causing those spikes to be honest, the lambda at low loads looks fine, 1.040 to 0.990, can you give me a time point that you're concerned about?

[Tony C]

we have tried all sorts trying to find the spikes mate,
we dont know if its alternator or the ignition cdi unit,
after the weekend we are going to start removing bits, like alternator, stereo amps etc etc, to see if that stops it.
any pointers where to look?
you sorted the earths out on the wiring and the spikes are still there
spark plugs?

[Tony C]

If any one is interested these are the spikes we are on about,


Rob,David, do you think where we have pin27 going to may cause this?
we have it going to the tach output on the cdi box, should i run pin 27 to the negative coil post instead???
your views?

[rob@vems.co.uk]

Wasnt this running with a hall output from the distributor originally?

[Tony C]

if i remember correctly yes Rob.

[rob@vems.co.uk]

Can we not do that anymore then?

[dnb]

I believe Tony is still doing this. 

[Tony C]

yes i am.

the car ran faultless today in the higher rev range, once in traffic it kangarroed every where and had trans shunt real bad,
not sure what we did this time Dave, but the last update you sent me it never did this, has it been leaned off to much now?
roll on this fuel correction working,

right the racing,
fekin disaster, the track was so green due to over night rain i was getting wheel spin up the track even on gear changing into 3rd and 4th,

[rob@vems.co.uk]

If you're on hall then I don't think that the noise will be coming from the trigger.
This electrical noise is a pain in the arse...

Shame about the track being wet.

Rob

[Tony C]

it was a disaster mate, every time the controller went to 100% and gave 150 bhp nitrous a sliding the rear end went,

Jago is coming over next weekend to try and help find this noise, he recons he can find it so i will let him have ago,

Had any feed back on the fuel correction prob yet Rob?
as i would like to get this sorted sooner or later as the race and show season is about to kick off for 2008.

[dnb]

Sounds like I did lean the cruise area off a bit too much.  It would be really nice to have correction...

I think the next step would be to use my spare Hall VEMS in your car woth your config. 

[Tony C]

that would eliminate or point to the ecu then,

[Tony C]

a couple of vids taken from today,
which was posted over on my v8 forum,

In car view of Tonys Capri

http://www.youtube.com/watch?v=ARPoGxaKIys

Tony vs Perry )

http://www.youtube.com/watch?v=aEKgN4EyFJg

listen for the wheels spinning on gear changes on the in car vid