P0654 while programming the vehicle
Thread Starter
Racer
Joined: Jan 2009
Posts: 393
Likes: 14
P0654 while programming the vehicle
I've got no rpm gauge movement after programming the car with HPtuners. This happened before but after a "write entire" it started working again. Now that "rad entire" doesn't help anymore. I've got a P0654 set and rpm gauge points zero..
Is the gauge test signal for each gauge generated in the gauge cluster or in the PCM? I ask just to narrow my failure possibilities.. The gauge test works just fine.
Is the gauge test signal for each gauge generated in the gauge cluster or in the PCM? I ask just to narrow my failure possibilities.. The gauge test works just fine.
Last edited by Juhatee; Apr 19, 2011 at 06:28 AM.
Tech Contributor
Joined: Jan 2007
Posts: 19,350
Likes: 1,124
From: Dyer, IN
I've got no rpm gauge movement after programming the car with HPtuners. This happened before but after a "write entire" it started working again. Now that "rad entire" doesn't help anymore. I've got a P0654 set and rpm gauge points zero..
Is the gauge test signal for each gauge generated in the gauge cluster or in the PCM? I ask just to narrow my failure possibilities.. The gauge test works just fine.
Is the gauge test signal for each gauge generated in the gauge cluster or in the PCM? I ask just to narrow my failure possibilities.. The gauge test works just fine.
Tech Contributor
Joined: Sep 2005
Posts: 1,731
Likes: 82
From: New Market AL
It's interesting that I had a similar thing happen recently when I was tuning on an 04 Z06 and the tach quit working for a while. I suspected a ground problem, and cleaned several of the chassis grounds under the hood (among a few other random checks). That seemed to fix it for me, as the tach began working again and the car settled down and behaved.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
I use EFI Live to tune my 02 ZO6 and my C6. I up loaded a tune once just before heading out to work and as I was driving out of the sub division, I noticed that I did NOT have any oil pressure. 
Engine sounded fine so,, I shut it down, checked the oil, looked for leaks and all seemed well. When I restarted the engine, I didnt have TAC, or Coolant Temp.
So,,, I figured that it had something to do with the PCM flash. I did a complete PCM reflashed and all readings returned to normal. WHEW!!!!!
Try to do a Complete PCM RE-FLASH. MAKE SURE that your battery is FULLY CHARGED and while your doing the flash, DO NOT change any loads in the car... That can and will effect the reflash data.
BC
Engine sounded fine so,, I shut it down, checked the oil, looked for leaks and all seemed well. When I restarted the engine, I didnt have TAC, or Coolant Temp.
So,,, I figured that it had something to do with the PCM flash. I did a complete PCM reflashed and all readings returned to normal. WHEW!!!!!
Try to do a Complete PCM RE-FLASH. MAKE SURE that your battery is FULLY CHARGED and while your doing the flash, DO NOT change any loads in the car... That can and will effect the reflash data.
BC
Thread Starter
Racer
Joined: Jan 2009
Posts: 393
Likes: 14
I still have many things to change in the tune so we'll see if this goes away at some point or not. I'll seek for the white wire going from PCM to gauge cluster if this problem persists.
Thread Starter
Racer
Joined: Jan 2009
Posts: 393
Likes: 14
Still no luck with rpm gauge.. I have re-flashed the car for 15-25 times and few times with "write entire" but rpm gauge has not worked at all.
I will have to look for the white wire and gauge that while running..
I will have to look for the white wire and gauge that while running..
