Diagnosing with dual pumps

6.4 Stroker · Jul 23, 2016

bigrpowr said:
i feel your pain homey . i chased a really random starting issue recently .. my truck would f'ing start prolly 1 out of 50 attempts . starter passed, everything passed. i swapped the shifter, adjusted the linkage on trans, chased everything. at a glance i said , F it , ill swap the starter for giggles , even though when it turned it was perfect every time. pulled starter , and a stud was loose . i know its not the same thing , but it was a huge pita . damn electronics i tell you .

Thanks Mike. Kinda nice to hear I'm not the only one that has to deal with this type of garbage. LOL

powerstroked08 · Jul 23, 2016

Good! I'm glad something is showing up for you. Dealing with electronics can be a real pain in the a$$

6.4 Stroker · Jul 24, 2016

powerstroked08 said:
Good! I'm glad something is showing up for you. Dealing with electronics can be a real pain in the a$$

Thanks.
This one was kinda a pain in the ass.
Can't wait to get this monster back on the street!

6.4 Stroker · Jul 24, 2016

Since everything is apart I decided to add some color.

bigrpowr · Jul 24, 2016

6.4 Stroker said:
Well gents, I'm pretty confident I found it. Getting a substantial voltage drop through the main engine harness.

#prayingforyou

6.4 Stroker · Jul 25, 2016

Tried a buddy's harness. No luck.

6.4 Stroker · Jul 26, 2016

Gonna go after grounds next.

Groomzybanshee · Jul 26, 2016

Did you ever try under vc harness ?

6.4 Stroker · Jul 26, 2016

I tested it by unplugging from the truck and individually applying voltage to each spade and using a multimeter.

Groomzybanshee · Aug 1, 2016

Any news

6.4 Stroker · Aug 1, 2016

Went on a little vacation with the wife. Should get a chance to work on it more within the next few days.

Groomzybanshee · Aug 1, 2016

6.4 Stroker said:
Went on a little vacation with the wife. Should get a chance to work on it more within the next few days.

Sounds good pm me if you need an ecm to try.

6.4 Stroker · Aug 1, 2016

Thanks, this really is an awsome site. Always someone willing to help.
Can you swap an ECM from one truck to another without reflashing?

Groomzybanshee · Aug 18, 2016

6.4 Stroker said:
Thanks, this really is an awsome site. Always someone willing to help.
Can you swap an ECM from one truck to another without reflashing?

What did you ever find?

6.4 Stroker · Aug 18, 2016

Was limping the truck to a buddy's house to flash a new ECU and boom... Rail pressure dropped, then spiked, and blew one of my dual fueler lines.
So, more of the waiting game until the new one shows up.
Was really gunning to get this thing done before Schied, but it just doesn't look like it's gonna happen.

BOSS450 · Aug 22, 2016

Turns out I returned to stock. Then re uploaded h&s. Then gh custom tunes. Then had to hit the up button to go up to "performance". So I assume my dumbass was running on stock level tunning.... Never claimed to be bright. Maybe it happened when the ecm got unplugged. Idk. But I never remember doing that before. Who knows.