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View Full Version : Fried tach driver, need ideas.


Ryan Stout
04-17-2013, 10:51 PM
So I killed my tach drier in my PCM (24x, 0411 PCM). Accidentally gave my tack a +12v shock. Tach no work. Bought a new PCM on ebay, company flashed my new PCM with my old PCM's VIN. HPTuners won't reflash my tune on my new PCM still. They want me to buy 2 more credits for the PCM, then I need 2 more for my 3bar SD tune ($200 total). Anyone have any ideas around this? No, I am NOT trying to cheat the system, the old PCM will be thrown away so don't say I'm trying to tune 2 cars on the same credits. I emailed em and they pretty well told me I'm screwed. I know they have to cover their ass, but this HAS to happen to people sometime.

So, anybody know how to resolder in a new tach driver or possibly whatever PROM that holds my tune in? (Yes I know its not a prom, but thats all I can come up with).
Chris
04-17-2013, 11:03 PM
Maybe contact Madz28 I know he does PCM repairs when they get damaged during flashing.

But otherwise all you are missing is the tach output to the speedometer/shift light and the car runs fine?
Ryan Stout
04-17-2013, 11:16 PM
Yeah thats all. I thought about getting a tach adapter, but it was the same price as a new PCM. Figured I'd do it "right", then I emailed HPT and they told me whats up.

It runs great, the PCM knows what RPM its at, it logs on HPT just fine, just no output to the gauges.
Chris
04-17-2013, 11:27 PM
Oh carp your 24x...... I was going to say I know the white wire at the pcm and one of the ignition circuits both had 60 or so hertz at idle when I was putting in my remote start.


What about using an areoforce gauge? What if you sent both pcm to hp tuners. There has to be a way around this

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Ryan Stout
04-18-2013, 12:14 AM
So far all I can do is buy more credits and they'll comp me the 3bar OS change. So now it's $100 *sigh*. Still sucks!!
Chris
04-18-2013, 06:53 AM
Better than alternatives. I'd just do that. Who're yourself out to ten chicks for ten bucks and your set

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Ryan Stout
04-18-2013, 01:13 PM
Wanna be the first? Lol
popo8
04-19-2013, 09:38 PM
Better than alternatives. I'd just do that. Who're yourself out to ten chicks for ten bucks and your set

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or 1 chick at 100.... or 5 chicks at 20... or chris for 500.00


Larry (Popo8) Co-owner
LTXtech.com
Chris
04-19-2013, 11:28 PM
How would putting him 500 in the whole help? ;)

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popo8
04-20-2013, 12:03 AM
How would putting him 500 in the whole help? ;)

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lol... i see what u did there.


Larry (Popo8) Co-owner
LTXtech.com
Ryan Stout
04-20-2013, 05:34 AM
For$500 I'd let you do it in pennies.
Ryan Stout
05-04-2013, 09:30 PM
Back up top. Bought a PCM and it still does it. Gonna start tracing wires tonight or tomorrow. Shit. Any ideas anyone?
cholmes729
05-06-2013, 02:29 PM
no RPM on the instrument cluster, you try a different cluster?
Ryan Stout
05-06-2013, 02:36 PM
Neither cluster or aftermarket worked. I messed with it last night for a while. I homed the wire from the blue connector at the pass kick panel to the IC. It was good, but it also read 8ohms to ground. I ran a new wire from the connector to my aftermarket tach and it was fine. I'm guessing I pinched it somewhere and it was grounded out. Should've known since I just had my dash out.

Tho it still bounces around when cranking.