Pcm Replaced

[bugster70]

  LightningXR6T said:

This may start a bum fight, but are things like XEDE or Unichip possibly a "safer" option.

I reckon you could be right there, I would have to agree that the piggybacks do appear to have a very good, reliable history - you don't get all the side effect stories you tend to hear with Edit.

  LightningXR6T said:

It would also be nice if CAPA could return 1 of my 5 calls I've made! Appears that they maybe be hiding something!

I'd be very interested to hear what their response is if and when they do return your call. Make sure you post it up for us please!

[Street Tuner]

Just noticed this thread.

During the upload process a CRC32 (Cyclic Redundancy Check) is carried out to ensure that the final checksum of the PCM matches the checksum of the program in the flasher. If there is only one bit of one byte that is not written correctly the engine will not crank or fire and the Flash Tuner will set a code. At which point you need to reload the stock program and start again.

It is in effect a digital system that simply 'counts' not some sort of human based interface that is prone to making mistakes. However the program itself that you load into the PCM is in fact adaptive and can make changes to the way the engine runs due to environmental conditions, which can make the car feel 'better' or 'worse' under varying circumstances, which is where your tuner comes into it. The good ones make the cars performance linear across the range of different environmentals, hence the car will always feel good.

The actual PCM write process being used with the CAPA Flash Tuner is identical to the one that Ford use. It has to be, or the whole process simply wouldnt work. These are Falcons, not Christine.

[dingah2]

Dingah

PS latest prog mods now sweeeet!

[LightningXR6T]

  Street Tuner said:

Just noticed this thread.

During the upload process a CRC32 (Cyclic Redundancy Check) is carried out to ensure that the final checksum of the PCM matches the checksum of the program in the flasher. If there is only one bit of one byte that is not written correctly the engine will not crank or fire and the Flash Tuner will set a code. At which point you need to reload the stock program and start again.

It is in effect a digital system that simply 'counts' not some sort of human based interface that is prone to making mistakes. However the program itself that you load into the PCM is in fact adaptive and can make changes to the way the engine runs due to environmental conditions, which can make the car feel 'better' or 'worse' under varying circumstances, which is where your tuner comes into it. The good ones make the cars performance linear across the range of different environmentals, hence the car will always feel good.

The actual PCM write process being used with the CAPA Flash Tuner is identical to the one that Ford use. It has to be, or the whole process simply wouldnt work. These are Falcons, not Christine.

<{POST_SNAPBACK}>

*Can you explain why a program can be loaded at say 9:00am than reloaded at 9:30am it feels different?

**Can you without question say that your flash tuner did not damage my PCM?

***Can you explain why on the factory tune why it began overboosting?

****If I use the flasher again and it cause a fault in the PCM and Ford refuse to replace it, will CAPA?

[Goobz]

  LightningXR6T said:

  Street Tuner said:

Just noticed this thread.

During the upload process a CRC32 (Cyclic Redundancy Check) is carried out to ensure that the final checksum of the PCM matches the checksum of the program in the flasher. If there is only one bit of one byte that is not written correctly the engine will not crank or fire and the Flash Tuner will set a code. At which point you need to reload the stock program and start again.

It is in effect a digital system that simply 'counts' not some sort of human based interface that is prone to making mistakes. However the program itself that you load into the PCM is in fact adaptive and can make changes to the way the engine runs due to environmental conditions, which can make the car feel 'better' or 'worse' under varying circumstances, which is where your tuner comes into it. The good ones make the cars performance linear across the range of different environmentals, hence the car will always feel good.

The actual PCM write process being used with the CAPA Flash Tuner is identical to the one that Ford use. It has to be, or the whole process simply wouldnt work. These are Falcons, not Christine.

<{POST_SNAPBACK}>

*Can you explain why a program can be loaded at say 9:00am than reloaded at 9:30am it feels different?

**Can you without question say that your flash tuner did not damage my PCM?

***Can you explain why on the factory tune why it began overboosting?

****If I use the flasher again and it cause a fault in the PCM and Ford refuse to replace it, will CAPA?

<{POST_SNAPBACK}>

And also how on the first of my flashes it made 19psi, 2nd 11psi and the 3rd 16psi??? All within 1 hour and all on exactly the same tune?

Chris

[Street Tuner]

  LightningXR6T said:

*Can you explain why a program can be loaded at say 9:00am than reloaded at 9:30am it feels different?

No. What was the exact difference though? How much did engine power output change, boost level etc. Post the dyno sheets.

  Quote

**Can you without question say that your flash tuner did not damage my PCM?

Yes

  Quote

***Can you explain why on the factory tune why it began overboosting?

Yes. Plenty of factory tunes hit overboost.

  Quote

****If I use the flasher again and it cause a fault in the PCM and Ford refuse to replace it, will CAPA?

<{POST_SNAPBACK}>

No. Put the car back to stock, and put your flasher on Ebay. that's my best advice for you.

[Street Tuner]

  Goobz said:

And also how on the first of my flashes it made 19psi, 2nd 11psi and the 3rd 16psi??? All within 1 hour and all on exactly the same tune?

Chris

<{POST_SNAPBACK}>

The difficulties you explain are a function of your chosen tuner rather than the pcm writing process. In fact regardless of whether you reflashed the pcm three times in half an hour it would seem that the boost control method used by your tuner is so far out of whack to have almost no chance.

Edited 24/11/05 09:45 PM by Street Tuner

[LightningXR6T]

No. Put the car back to stock, and put your flasher on Ebay. that's my best advice for you.

<{POST_SNAPBACK}>

Forgive me if I'm wrong, but it appears buy the way you answer questions on behalf of CAPA, you are infact associated with CAPA.

If I am correct your manner and attitude you reply to leaves something to be desired. I've made 5 calls and 1 fax to CAPA with no response. If anyone should be getting cranky, it should be me.

So please back the attitude off and be constructive!

[Street Tuner]

  LightningXR6T said:

Forgive me if I'm wrong, but it appears buy the way you answer questions on behalf of CAPA, you are infact associated with CAPA. If I am correct your manner and attitude you reply to leaves something to be desired. I've made 5 calls and 1 fax to CAPA with no response. If anyone should be getting cranky, it should be me.

Yes you should be getting cranky.

  Quote

So please back the attitude off and be constructive!

<{POST_SNAPBACK}>

However I will struggle to explain any concept when the basic fundamentals of binary logic arent fully understood. My earlier post outlined exactly how the pcm write takes place. If you choose not to accept that, then we have nothing further to discuss here.

Edited 24/11/05 10:53 PM by Street Tuner

[LightningXR6T]

  Street Tuner said:

  LightningXR6T said:

Forgive me if I'm wrong, but it appears buy the way you answer questions on behalf of CAPA, you are infact associated with CAPA. If I am correct your manner and attitude you reply to leaves something to be desired. I've made 5 calls and 1 fax to CAPA with no response. If anyone should be getting cranky, it should be me.

Yes you should be getting cranky.

  Quote

So please back the attitude off and be constructive!

<{POST_SNAPBACK}>

However I will struggle to explain any concept when the basic fundamentals of binary logic arent fully understood. My earlier post outlined exactly how the pcm write takes place. If you choose not to accept that, then we have nothing further to discuss here.

<{POST_SNAPBACK}>

I do accept that you know what you are talking about "basic fundamentals of binary logic" because I don't even know what that means.

My concerns are very real and it appears that the people that should be helping are burying their heads in the sand.

No, I'm not an expert so like many others out there we rely on the suppliers and their associates to help in times like this. I bought the flasher for a reason and I like the extra performance gained. What I don't like is the my concieved (and other owners) inconsistancey of the product.

If I decide to I will sell the unit. I would prefer CAPA to offer a buy-back if possible but they appear unwilling to reply. As stated, I'm asking for help not criticism!