What exactly is a Fingerstick?

**Angel of Death** · 06-07-2009, 07:48 AM

Please excuse my ignorance but I don't know what a fingerstick is. I searched for it here and found many many off-handed references to it but nothing that really explains it. Does it plug into the OBDII port? I guess somehow it blocks certain codes?

My truck is a non-FE9 (at least it wasn't listed on the glove box sticker) and I plan on installing a turbo back 4inch from banks next weekend, straight tube from turbo to tip no muffler no cat. I assume it will throw codes, but they won't necessarily turn on my SES?

Thanks for your patience. Erik

1LoudDuramax · 06-07-2009, 08:13 AM

It is a simple circuit that modifies the MAF signal on LLY engines (not LB7 engines) to expected levels when the EGR is blocked or a free flowing exhaust system causes the ECM to set codes.This will prevent a Service Engine Soon light from coming on and will prevent the ECM from displaying DTC codes related to an EGR modification or bigger exhaust.

WVRigRat05 · 06-07-2009, 08:18 AM

so if i get the egr blocker ill need one of those?

**Angel of Death** · 06-07-2009, 08:26 AM

Quote:

Originally Posted by 1LoudDuramax

It is a simple circuit that modifies the MAF signal on LLY engines (not LB7 engines) to expected levels when the EGR is blocked or a free flowing exhaust system causes the ECM to set codes.This will prevent a Service Engine Soon light from coming on and will prevent the ECM from displaying DTC codes related to an EGR modification or bigger exhaust.

So is this something I would have to splice into the factory wiring harness? Thank you for your response too. Erik

**Tow Master** · 06-07-2009, 11:10 PM

Quote:

Originally Posted by WVRigRat05

so if i get the egr blocker ill need one of those?

Yes. If you do the blocker you'll set a CEL and defiantly need one.

Quote:

Originally Posted by Angel of Death

So is this something I would have to splice into the factory wiring harness? Thank you for your response too. Erik

Yes, it splices into the engine wiring harness under the hood. If you do it right you can hide it in the wiring loom and it wont be seen (dealer trips).

**Angel of Death** · 06-08-2009, 04:08 AM

Quote:

Originally Posted by Tow Master

Yes. If you do the blocker you'll set a CEL and defiantly need one.

Yes, it splices into the engine wiring harness under the hood. If you do it right you can hide it in the wiring loom and it wont be seen (dealer trips).

Does someone sell this or do I have to make it at RadioShack?

**Tow Master** · 06-08-2009, 10:09 PM

This is the only place that I know of that sells it. Type "finger" in the search bar.

http://www.kennedydiesel.com/

**Angel of Death** · 06-09-2009, 08:41 AM

Quote:

Originally Posted by Tow Master

This is the only place that I know of that sells it. Type "finger" in the search bar.

http://www.kennedydiesel.com/

Perfect! That package is just what we needed! Priced ok too, can't complain. Thanks so much. Erik

**Killerbee** · 06-15-2009, 02:59 PM

skip it.

It is much easier to fix the issue with your next tuner. Or custom tuning