Title: Urgent help ECU ME7.5 problems Post by: aaronritchie on March 26, 2013, 05:57:45 AM I have flash my car many times without an issue. Today it flashed ok but when i started car it ran then cut off , like fule pump was getting switched on and off . I can not get connected to ECU to flash back to stock. it tries to connect but ends up disconnected. Car is at work and need it to get home tonight . Any ideas chaps ? The file i flashed was checksum checked.
Title: Re: Urgent help ECU ME7.5 problems Post by: vdubnation on March 26, 2013, 06:44:06 AM what are you using for checksum not always are they right post the file i can check i would crack open the ecu ground the pin to put it in bootmode and flash it with galleto over car obd port
Title: Re: Urgent help ECU ME7.5 problems Post by: aaronritchie on March 26, 2013, 07:01:22 AM what are you using for checksum not always are they right post the file i can check i would crack open the ecu ground the pin to put it in bootmode and flash it with galleto over car obd port Using the checksum plugin for tuner pro and ME7 check to double check before flash . Title: Re: Urgent help ECU ME7.5 problems Post by: aaronritchie on March 26, 2013, 08:57:26 AM Using the checksum plugin for tuner pro and ME7 check to double check before flash . The flash seemed to work correctly , telling me it has flashed 19 out of 19 . Just when i went to start car fuel pump was going on for two seconds then off then on , like this co nstantly Title: Re: Urgent help ECU ME7.5 problems Post by: ddillenger on March 26, 2013, 09:03:40 AM If you can't connect, bootmode a stock flash back on there (or at least the last version you used that worked). These things happen.
I hope you took everyone's advice and became proficient with bootmode prior to NEEDING it! Title: Re: Urgent help ECU ME7.5 problems Post by: aaronritchie on March 26, 2013, 09:25:15 AM If you can't connect, bootmode a stock flash back on there (or at least the last version you used that worked). These things happen. I hope you took everyone's advice and became proficient with bootmode prior to NEEDING it! Yes studied it but never used it before . Dose bootmode affect the Immo ? Title: Re: Urgent help ECU ME7.5 problems Post by: maZer.GTi on March 26, 2013, 09:29:30 AM Yes studied it but never used it before . Dose bootmode affect the Immo ? No Bootmode will not affect your Immo configuration :) Title: Re: Urgent help ECU ME7.5 problems Post by: ddillenger on March 26, 2013, 09:30:52 AM Immobilizer functions can be left intact for bootmode flashing.
Just keep in mind, flashing a stock file in bootmode will allow you to restore communication with the ecu, but it must be reprogrammed using nefmoto to remove the checksum/programming DTC that will result. So, flash it in bootmode. Then reflash it with nefmoto. Title: Re: Urgent help ECU ME7.5 problems Post by: aef on March 26, 2013, 11:11:55 PM Which reprogramming/checksum DTC do you refer to?
Read alot about bootmode flashing and did it my own with mpps/galletto and never got any dtc. So i am a little bit confused now ??? Title: Re: Urgent help ECU ME7.5 problems Post by: ddillenger on March 26, 2013, 11:20:51 PM Which reprogramming/checksum DTC do you refer to? Read alot about bootmode flashing and did it my own with mpps/galletto and never got any dtc. So i am a little bit confused now ??? http://www.nefariousmotorsports.com/forum/index.php/topic,265.msg5552.html#msg5552 Point being, if you ever flash a file with a bad checksum, the error is stored in the eeprom (see the death code in the immobilizer sticky) until the ecu is reflashed using the vag protocols. I suppose you could recover the ecu with bootmode, then manually edit the eeprom to clear the code, but I always just flashed via OBD when it occurred. Title: Re: Urgent help ECU ME7.5 problems Post by: NOTORIOUS VR on March 27, 2013, 07:58:27 AM you can try disconnecting the battery and waiting 10 mins... that will usually allow you to reconnect w/o bootmode
Title: Re: Urgent help ECU ME7.5 problems Post by: aaronritchie on March 27, 2013, 08:49:10 AM you can try disconnecting the battery and waiting 10 mins... that will usually allow you to reconnect w/o bootmode tried that for an hour with batt off but no joy. I have tried using my FT232R cable with galletto cable ID . Ground pin 24 while reconnectinig battery , ignition is on at this point . Remove ground after 5 seconds then try to write stock flash . just keeps on saying boot mode inactive . Any idea ? Title: Re: Urgent help ECU ME7.5 problems Post by: ddillenger on March 27, 2013, 09:11:25 AM tried that for an hour with batt off but no joy. I have tried using my FT232R cable with galletto cable ID . Ground pin 24 while reconnectinig battery , ignition is on at this point . Remove ground after 5 seconds then try to write stock flash . just keeps on saying boot mode inactive . Any idea ? I could never get the galletto cable to work in the car, bootmode or otherwise. Where are you located? If you're local (I doubt it) I'd fix it for you. Otherwise, keep trying and consider building a bench flashing setup. Title: Re: Urgent help ECU ME7.5 problems Post by: aaronritchie on March 27, 2013, 09:23:50 AM I could never get the galletto cable to work in the car, bootmode or otherwise. Where are you located? If you're local (I doubt it) I'd fix it for you. Otherwise, keep trying and consider building a bench flashing setup. Its not a proper galletto cable , just my FT232R with the galletto cable serial . So you think a bench flash would be the best bet Im north east scotland ! Title: Re: Urgent help ECU ME7.5 problems Post by: ddillenger on March 27, 2013, 09:28:01 AM I think bench flashing would take a lot of the variables out of the equation, but user error is the hardest to eliminate :P
Bootmode: Start Galletto, hit WRITE. Wait for the prompt to pop up about grounding pin 24. Ground pin 24. Power up ecu (in the car this means turning the key on, but I find it works best to leave the key on, disconnect the battery completely, then reconnect the battery as the pin is grounded) Count to 5 (or 10, longer doesn't hurt as long as you remove the pin before reading/writing) Remove the pin from ground while leaving the ecu powered up. Once you have grounded the eprom, do not cut power to the ecu until the programming session has finished. Hit OK. Should work at that point. This is how I'd do it. Title: Re: Urgent help ECU ME7.5 problems Post by: thom337 on March 27, 2013, 04:05:19 PM Try putting a 8kOHM or similar resistor between the boot pin and ground. I've had problems w/ Galletto in the past where a straight up short to ground would not work...not sure why but just sharing my experience.
Title: Re: Urgent help ECU ME7.5 problems Post by: aaronritchie on March 28, 2013, 12:49:20 AM Try putting a 8kOHM or similar resistor between the boot pin and ground. I've had problems w/ Galletto in the past where a straight up short to ground would not work...not sure why but just sharing my experience. was that in the car boot or bench bootmode ? Quick question on bench flashing , do i need to connect 12vc to the immo pin on the ECU for it to work ? thanks for all your replys . need to get this thing running so i can get home ! Title: Re: Urgent help ECU ME7.5 problems Post by: aaronritchie on March 28, 2013, 06:12:41 AM was that in the car boot or bench bootmode ? Quick question on bench flashing , do i need to connect 12vc to the immo pin on the ECU for it to work ? thanks for all your replys . need to get this thing running so i can get home ! Tried everything including bench flashing . Always says boot mode inactive ! any special driver i need for my FTD232R CABLE or must it be a proper galletto cable Title: Re: Urgent help ECU ME7.5 problems Post by: vdubnation on March 28, 2013, 06:56:09 AM was that in the car boot or bench bootmode ? Quick question on bench flashing , do i need to connect 12vc to the immo pin on the ECU for it to work ? thanks for all your replys . need to get this thing running so i can get home ! Yes if your car is equiped with a immo you need to supply 12v's the way i do it is 1. I connect the following wires Pin 1 Ground Pin 2 Ground Pin 3 12v Pin 21 12v Immobilizer (if your car has one) Pin 43 K-line Pin 62 12v 2. Hold a ground down to pin 24 (http://i45.tinypic.com/1zdy7fc.png) 3. Power up the ecu while holding the pin down 4. count to 10 then do what you gotta do with the galleto Title: Re: Urgent help ECU ME7.5 problems Post by: aaronritchie on March 28, 2013, 07:50:31 AM Yes if your car is equiped with a immo you need to supply 12v's the way i do it is 1. I connect the following wires Pin 1 Ground Pin 2 Ground Pin 3 12v Pin 21 12v Immobilizer (if your car has one) Pin 43 K-line Pin 62 12v 2. Hold a ground down to pin 24 (http://i45.tinypic.com/1zdy7fc.png) 3. Power up the ecu while holding the pin down 4. count to 10 then do what you gotta do with the galleto This is what i have done , still will not go into boot mode and cant read/write in normal node . To flash bootmode on car do you have to remove certain fuses or cluster for it to work on car ? Does anyone know what voltage should be on pin 24 before grounding ? I read approx 1.7 volts , 23 reads 5 volts . Also im using the ftdi drivers thaat came with my ebay FT232R cable . Is there drivers for to use the cable as galletto as i have changed the serial number on my cable . |