Stumped again

DEEZUZ · Oct 23, 2023

Part of gaining access to IDM is to check the pins

6.0 Tech · Oct 23, 2023

psduser1 said:
Well, idm swap didn't change anything.
What are the chances all eight injectors are bad, lol.
Pcm maybe? That's the only other change, pulling the chip, but I've never seen a pcm that only worked with the chip in.

Stupid question, but the big square plug on the lh valve cover is plugged in, correct? And you have rpm signal?

Sent from my iPhone using Tapatalk

psduser1 · Oct 24, 2023

DEEZUZ said:
Part of gaining access to IDM is to check the pins

The was the last project on the way out the door, so no, I didn't check for power, just plugged another idm in to see if it would fire. I guess I don't know which pin(s) to check for power.

psduser1 · Oct 24, 2023

6.0 Tech said:
Stupid question, but the big square plug on the lh valve cover is plugged in, correct? And you have rpm signal?

Sent from my iPhone using Tapatalk

Yes I've had the 42 pin connector apart and back together several times, no problems there.
Didn't pay attention to the tach while cranking, if that's what your asking. How would I check rpm signal with a meter? I

fastersteve · Oct 24, 2023

Is it the original pcm? Maybe you are having a PATS issue...the chip could override the PATS, pulling it would engage the PATS.

6.0 Tech · Oct 24, 2023

psduser1 said:
Yes I've had the 42 pin connector apart and back together several times, no problems there.
Didn't pay attention to the tach while cranking, if that's what your asking. How would I check rpm signal with a meter? I

You said you have a scan gauge, correct? Use that. Not entirely sure on what pins to be checking while using a meter.

Sent from my iPhone using Tapatalk

psduser1 · Oct 24, 2023

fastersteve said:
Is it the original pcm? Maybe you are having a PATS issue...the chip could override the PATS, pulling it would engage the PATS.

It is the original pcm, but gh tuning doesn't shut off pats unless they are specifically asked to do so. I reset the pats for s&g, but the light is flashing as it always has.

psduser1 · Oct 24, 2023

6.0 Tech said:
You said you have a scan gauge, correct? Use that. Not entirely sure on what pins to be checking while using a meter.

Sent from my iPhone using Tapatalk

I don't think the scan gauge reads rpm without a 5v adapter, maybe. I'll check that out, and see if that's a possibility. I've had this one for about 15 yrs, lol. It's not the " 2" version.

6.0 Tech · Oct 24, 2023

psduser1 said:
I don't think the scan gauge reads rpm without a 5v adapter, maybe. I'll check that out, and see if that's a possibility. I've had this one for about 15 yrs, lol. It's not the " 2" version.

Ah, all the ones I’ve seen have probably been the 2, as they read thru the dlc for assorted pids.

Sent from my iPhone using Tapatalk

6.7powersmoke · Oct 25, 2023

embrace forscan lite with bluetooth dongle

check icp, ipr %, crank rpm, fuel pulse width and report back. Also do a buzz test.

How long have you cranked to purge oil?

psduser1 · Oct 25, 2023

6.7powersmoke said:
embrace forscan lite with bluetooth dongle

check icp, ipr %, crank rpm, fuel pulse width and report back. Also do a buzz test.

How long have you cranked to purge oil?

That's the plan. 3k psi at the rail, I'd say long enough, lol.

lincolnlocker · Oct 25, 2023

psduser1 said:
That's the plan. 3k psi at the rail, I'd say long enough, lol.

Uvch get plugged back in? Lol... ive done that...

6.7powersmoke · Oct 25, 2023

With good batteries and a denso starter it usually takes at least two good 15-20 second cranks.

With weak batteries and oem starter it can take alot more.

Powerstroke Cowboy · Oct 25, 2023

6.7powersmoke said:
With good batteries and a denso starter it usually takes at least two good 15-20 second cranks.

With weak batteries and oem starter it can take alot more.

He already has 3000 psi oil rail pressure. It only take about 500 psi to fire the injectors.

The injectors themselves are not firing. Either a bad wire or the injectors are bad.

6.7powersmoke · Oct 26, 2023

Durrrr me skipped over that

psduser1 · Oct 26, 2023

I'm leaning towards a wire issue...

psduser1 · Oct 28, 2023

6.0 Tech said:
Stupid question, but the big square plug on the lh valve cover is plugged in, correct? And you have rpm signal?

Sent from my iPhone using Tapatalk

Torque pro thru the obd2 Bluetooth says I have 150-160 rpm, cranking.
I still need to find a pinout for the idm to verify power there, just gonna continue to be a side project, I guess.

6.0 Tech · Oct 28, 2023

psduser1 said:
Torque pro thru the obd2 Bluetooth says I have 150-160 rpm, cranking.
I still need to find a pinout for the idm to verify power there, just gonna continue to be a side project, I guess.

Can you buzz test with the torque pro app?

Sent from my iPhone using Tapatalk

psduser1 · Oct 28, 2023

I don't know, really. I was just fiddling around to see how the app worked. I'll check it out, but I don't really it's designed to do that much indepth.
It did clear the codes.

fastersteve · Oct 30, 2023

6.7powersmoke said:
embrace forscan lite with bluetooth dongle

check icp, ipr %, crank rpm, fuel pulse width and report back. Also do a buzz test.

How long have you cranked to purge oil?

Do you know if forscan lite will work with my AE dongle? My old laptop crashed and I can't find the software during a move.