[rigstar]

a little background first
been deleted since may about 24,000kms - no problems
last week h&s pyro started acting up - no big deal,
just jumping from 0-2600 and back, sometimes sits @ 1400 while
idling everything else on the mm was working fine, talked with H&S they
figure it is the php board(??) under the hood - going to send it to them

last night loaded some new tunes went for a drive everything good,
went for a drive today for about 500kms, about half way thru drive this happened (see pic) can't remember if it happened while driving or after a shut-off and re-start.


so my questions are:

what is happening?
what to look for and how do I fix?
is it still ok to drive like this?

thanks guys

 

[rusty1]

My first guess would be a bad connection to the OBD port or the MM. Im sure you already checked those

 

[diesel_newbie]

Mine did the same thing when I first installed because I was only running off the obdII port. Once I hooked up the 12V supply off the key it quit. If you just leave the mm on all the time (only running off the obd2) then that could cause the problem. Or it came unplugged/ wire pulled from plug.

 

[rigstar]

My first guess would be a bad connection to the OBD port or the MM. Im sure you already checked those

checked the obd port seems solid and connected haven't had a chance to take of the pillar mount and check yet though, I will though
thanks

 

[rigstar]

Mine did the same thing when I first installed because I was only running off the obdII port. Once I hooked up the 12V supply off the key it quit. If you just leave the mm on all the time (only running off the obd2) then that could cause the problem. Or it came unplugged/ wire pulled from plug.

I haven't had a chance to have a look under the dash yet to see what's up,
I never installed mine so I am not sure how power is run, I am thinking it is keyed as it doesn't stay on, it comes on once I turn the key on, but I will check and see if I can source out where it is powered.
did you run the truck while that was happening?(while that was displayed on the MM)?
thanks

 

[diesel_newbie]

No. Wasn't sure what to do so I rebooted. After I turned key on I would turn mm on and no issue. After I ran the wire from my fuse box to the mm harness the mm would turn on and off with the key and haven't had any issue.

 

[rigstar]

so it seems that it IS the pyro and/or pch board I traced the wire back to the board under the hood and un-plugged from the box under the dash ; turned key on MM fired right up like normal
does this seem right?? anyone else have this happen like this?



so now do I ship back and wait for a new one under warranty from H&S or should I go with a more reliable pch board and pyro?

 

[rigstar]

went for a drive today, absolutely no problems with the MM; so i will run without the pyro till i figure out what i am going to do.
so what is everyone running?
the h&s pyro or something else?
what is proven to be reliable?

thanks

 

[Tomeygun]

went for a drive today, absolutely no problems with the MM; so i will run without the pyro till i figure out what i am going to do.
so what is everyone running?
the h&s pyro or something else?
what is proven to be reliable?

thanks

My H&S pyro broke as well, I will be going with the tried and true Autometer Ultralite (AM-4345 UL) - used one for 9 years on my 2003. Never gave me any trouble

Then a 100psi gauge for drive pressure and 60psi gauge for boost.

 

[rigstar]

My H&S pyro broke as well, I will be going with the tried and true Autometer Ultralite (AM-4345 UL) - used one for 9 years on my 2003. Never gave me any trouble

thanks i had a look at this one but i don't have a gauge pillar, maybe in time i will,
is there another brand other than a H&S one that has a pyro board and can be plugged directly into the black box under the dash?
or is it strictly for use by a h&s pyro?

 

[mikes3500]

H&S only cause it uses a mini USB port. I have the pch board and 2 pyros one in blockoff plate and one in collector. I have a oem style from H&S sitting on the shelf not being used. It is the new updated one.

 

[rigstar]

could i use this one from JB's POWER CENTER?
Part number: 266 709403

Quantity available: In Stock

Stock ETA:
Product description
Replacement PCH Board V2.0

 

[dahammer]

could i use this one from JB's POWER CENTER?
Part number: 266 709403

Quantity available: In Stock

Stock ETA:
Product description
Replacement PCH Board V2.0

There is a chance if you contact H&S they may warranty it for you. I had an issue with the block plugin and they sent one to me right away no ? asked . They were pretty good to deal with. It is just a thought.

 

[rigstar]

i did and they will warranty it but i have to send it to them and then they fix it ?? or send a new one??
was just wondering if there was anyone else's i could use instead of or in the mean time will it is getting fixed