Diagnostix Help

**Maverick** · 28th September 2005, 16:14

I was wondering if anyone can help. My car is smoking quite badly on full throttle since having the box fitted.

Mine is at Position 21 (Presuming it came already set to position 18) so I have turned it 3 times anti clockwise.

The reason I ask is that the car never ever smoked before and I was told by Diagnostix that, if it did'nt smoke before it should not smoke now.

I am sure there is a simple answer, but any feedback would be appreciated.

**AJA** · 28th September 2005, 19:39

I had a bit of smoke at turn 23 on the diagnostix box, so I turned it down to 21. It's a little smokey but nothing major.

**Bainie** · 28th September 2005, 20:17

You guys are just getting plain greedy now *lol*

**SRI-RICH** · 28th September 2005, 21:10

Ive been running mine at "23" now for a while, it does smoke when you boot it, i didnt notice any smoke when it was at "18"........ill turn it back to "21" and see what its like there...will let you know tomorrow night....

**Maverick** · 28th September 2005, 21:12

Cheers Guys, it 'appears' to be a little better at 21, I'll be doing about 400 miles tomorrow t I'll keep an eye on it.

**Caterman** · 28th September 2005, 22:56

Mine did'nt smoke at all at 18 but did at 22. turned it back to 20 and smoke has gone again unless really booting it. Might try it at 21 ready for Saturday.

**AJA** · 29th September 2005, 08:01

looks like 21 is the best setting then. I'm calling them today to discuss their new Digital Box (Viper 190bhp from a CDTi 150)

**simonali** · 29th September 2005, 10:34

Is that new 'un gonna be a lot more expensive?

**AJA** · 29th September 2005, 12:32

I've spoke to Diagnostix this morning about other things, and they've said that the new Viper box is digital and not analogue like the one we have. With a little tweaking he reckons a 1.9 CDTi can produce 210bhp. I will be having one, if that's the case.

Imagine what a V6 CDTi will produce.

**Maverick** · 29th September 2005, 19:50

Well, 486 miles later, it appears to be better.

Worth noting though, on your trip computer, the gallons used function does not read accuratly when using a 'box'

As these readings are taken from the ECU, something happens to it. I am not sure what but the box 'appears' to be making the ECU miss some info for the trip, mine ran out at 10.4 gallons today, when normally you run it to 12.2 gallons.

To see if this theory is right, I have filled up again, zeroed the trip and removed the Diagnostix box, just to see it it goes back again.