engine and drivetrain Innovate Afr...steering Arm Clipped The Wires?

[ndog]

hello all

my steering arm clipped my innovate afr wires.I see that they(afr) have 3 going from the sensor to the gauge with  1 shielded ground.

If i reterminate the three. will not doing the shielding fup anything other than radio reception?

do u suppose this is just to keep down interference??

sorry if i  misspellage Iam undercar

Edited September 7, 2013 by ndog

[MrForce]

The shield protects the signal from ignition RF. You may not need it. A small leak in shielding is not the same as the loss of continuity in a power wire.

Rob

[ray_]

Yeah I wouldn't sweat it. That wire may be hard to solder. Just crimp it real well.

 

HL,

[Original_Customs]

A small leak in shielding is not the same as the loss of continuity in a power wire.

That depends on where the shielding gets ground.  It should only ground at one end, and if it grounds on the end that's cut, the shield becomes ineffective.  But once you reconnect the wires and heat shrink them, you can wrap a small bit of tinfoil around everything to bridge the shield.  Seems hokey, but it's not.  Just make sure to wrap the outside as well.

 

Although, after all that, you would probably find that the shield is unnecessary and everything works fine anyway.  

[TobyB]

 

if it grounds on the end that's cut, the shield becomes ineffective.

No, it just becomes a potential source of ground loops IF there's a potential for flow through the shield.... different problem, sometimes same results...

 

Anyway, splice 'em somehow and insulate them well and you'll be fine.

 

t

[ndog]

 thanks

i was able to reterminate the wires but the gauge is now sketchy reading @20..the car has a 13-13.5 dial-in.

I will call them monday to see if i need to perform a open air calibration

/orItoastedit

Edited September 7, 2013 by ndog

[Original_Customs]

I could see recalibrating.  You added small resistance to the wires.

[M3M3M3]

if the steering arm cut the wires while the unit was on, it may have (probably?) fried the controller.  reconnecting the wires won't do much good.

 

open air recal needed whenever you change anything, and should be done periodically anyway.

[TobyB]

...or pulled the wires out of the o2 sensor.  The only thing it could have possibly hurt would be the heater supply circuit...

and it SHOULD be current- limited to protect itself- the heaters can short all on their own.

 

Sure you got the wires right?  There is a polarity to the sensor side...

 

t

[ndog]

^ya it's wired right no fuses popped,and the gauge never went out, it just started missreading.

the nut on the arm smashed th wire harness but didnt cut them in 2

[ray_]

Check to be sure it's still programmed for the proper fuel type.

 

GL,

[ndog]

ty ray

turns out resistance is not a issue according to innovate mosport.

The lc-2  sounds like a great product if i roasted mine