Guillaume Malaquin

Hi from France,

I have Z28 2000 LS1, 4L60E.

So, if I get it right I need :

1. 2005 Express PCM - Serv. No. 12589462 - Hwd. No. 12589161 it's right? Or it's better to me to Run 2004 GTO P59 and OS?
2. 05 Avalanche Flex Fuel OS, it's DBW but it could DBC (how?) or GTO 2004?
3. I have ACDELCO 13577429 Flex Fuel Sensor and fitting for it
4. Someone say we have to repin Spark Retard Signal of the 53 Red to 12 Green for the ASR control. http://chevythunder.com/2004_gto_pcm_pinouts.htm That's right?
5. For the O2 Heater Ground, on 99-02 they are grounded on the body and P59 need grounded on the PCM, so I just need to disable DTC like P0137 to avoid SES light?
6. For A/C Request, just switch to analog
7. What should I do for the 4-6 extra Ground pins on the P59 PCM?

i420tom

iTrader: (11)

Your Stock 411 pcm can do 2 bar flex fuel. You don' need to change PCM unless you want 3bar (more than 14lbs boost forced induction). There are plenty of 2 bar capable flex fuel po1 411 tunes floating around.

Guillaume Malaquin

Thanks, but can I have answers for what I asking for?

Thank you

98_WS6_M6

iTrader: (18)

I don't know about which p59 will work or not I just bought one from pcm4less online and told him what I was doing with it and it worked great but we set my buddy's up with a junkyard one from an 05 express van. Bought it on eBay for $50. The info is in this thread in the beginning for what part numbers specifically work.

Might be this thread too. Either way both threads have tons of info.
https://ls1tech.com/forums/showthrea...1734778&page=1

My OS is from an 05 avalanche and I use dbc and didn't have to do anything.

That flex fuel sensor is fine. You will need the pigtail for it also. I just got mine off eBay. It will have a power and a ground and a flex fuel wire (which will go to the pcm blue connector pin 56)

You don't have to repin anything. You just switch the blue and red connectors on the engine harness that go into the pcm. The only thing that needs to be changed is you have to add the flex fuel wire to the pcm connector on the engine harness (blue 56). Now the red connector won't fit into the p59 pcm but you can either cut the clips off it and it will fit or order a green connector on eBay. I ordered the green connector.

For the O2's you may have to disable a code but no wiring will change. Everything works pretty easily.

I don't know what to do for AC. Delete it? Just joking. Someone else can answer that.

You don't need to worry about any wiring besides what I posted above.

I just got mine running good. Good luck.

Guillaume Malaquin

Hi, thank you!

So I don't need worry about the extra ground wires?(I don't talk about the o2 Sensor)
Your ASR work well too? For the A/C we need to switch to analog mod if I read well! Thanks for the green connector i didn't know it dondt fit the red one.

​​​​

i420tom

iTrader: (11)

Don't worry about the extra grounds, just turn the codes off in the tune. Also you can trim the connectors green/red so they will fit. I have personally done this p59 swap and needed nothing except for tune, and 12 volt pullup resistor for the tach. My ac also works

subeone

iTrader: (5)

If you guys need any of the p59s, let me know I have literally more than a 100 P59s with drive by cable capability. I can flash a flex fuel OS, 3 bar, 80e, dbc segment already for a small fee.

Guillaume Malaquin

A Camaro 2000 need pullup resistor? How wire that?

Guillaume Malaquin

So

I swapped my PCM with P59 saturday. My ASR don't work, maybe because the Camaro use ASM Module and the cars with P59 use the PCM directly. So I need to rewire some wires. I have the "Service vehicle" light on, maybe 'cause the ASR no fonctionnal?

Any idea?

LS6427

iTrader: (2)

You mentioned this before on here, about the 1998 factory gauges working just fine with a P59 PCM.

If I buy one of your P59s with everything flashed as you mentioned above, which is exactly what I need......will my gauge cluster work normally....?

I plan to re-pin my 1998 harness so it will accept the 99+ PCMs.......

Price for the PCM...flashed and ready to go...?

Thanks....

.

i420tom

iTrader: (11)

I do believe Service vehicle does come on when abs is inop, the first time I saw it come on is when my fuel was reallllllly low. Then I believe it came on again when I did my abs delete.

Guillaume Malaquin

My ABS work great, just my ASR is off. I'll try to rewire this and see what happens

Thanks !

Guillaume Malaquin

Fuel full, ABS work good

So I try to rewire the ASR like on 2004 Corvette and trucks P59 : Don’t work
Rewire that from PCM directly to ASM not trough EBCM : Don’t work
Rewire that from PCM to EBCM than to ASM : Don’t work


There are a setting for the torque management who can disable this issue?

redcamaro4140

iTrader: (2)

G Atsma

Any particular problem with you starting your own thread instead of hijacking this one??

redcamaro4140

iTrader: (2)

G Atsma

But your question has nothing to do with the subject of this thread. There are hundreds of threads "already up". That's like carjacking because it's "already started and running".

redcamaro4140

iTrader: (2)

Guillaume Malaquin

First, I try 02 Tahoe on P411 for Flexfuel with the E85 sensor (the cheap one), that's don't work at all.
Check if your "matrix" table have been filled correctly too. "Fbody" in the menu and :

redcamaro4140

iTrader: (2)