EFIDynoTuning Forum

hi. im trying to tune a 98 3.8 mustang with a HHU1 catch code ecu. does anyone have an appropriate base tune file and xdf or know where or how i can get one? any help is appreciated.

xdf and adx is at the top of this section

if you followed the directions in the getting started write up and read it out you can verify its correct by writing your read out file to the qh.

if it doesnt function correctly that means you didnt get all of the plastic off the j3 port on the back of the ecu. Make sure you scrape each trace with a razor blade to get the plastic off.

ive cleaned the j3 port twice with a brass wire brush and rubbing alcohol thinking it was a bad connection too. no luck. i think its something in the crai8 xdf file because i can read my stock tune out and load it into tunerpro but all the values just populate as randomized garbage. examples: engine displacement 3.4 liters, fuel pump prime time 38.6 seconds, random letters and numbers in the injector size editor. i looked and noticed there's a patch in the xdf for "crajo strategy identifier" that's supposed to be patched for a crai8 file but isn't. i also tried a different fresh hhu1 bin file i sourced and it did the same thing so im thinking its the strategy file not interpreting correctly. if you could take a look at it id be very thankful. ill attach the bin im trying to use. "unknown bin" is the one i read off the cars ecu the other is the bin i was given.

Also attaching a reformatted version of another hhu1 bin

Your unkown bin is a bad read, garbage data.
Check the J3 port again. Assuming your using QH, verify its plug is clean.
Use another ECU, try to read that.
Run tunerpro as Administrator. I've had to do that before.
Delete the unkown bin files.
Start a new read, do not save on top of another file, create a new one.

@wwhite I think the other bin he got strait form Paul Boothe’s library. Didn’t make sense that neither would open.

Would it be easier for him to use one of the standard bins for and set it up for his PATs?

@rusty i did get it from Paul. i had a friend try the same files with tunerpro on his laptop and it gave the same data readings. something definitely isn't right because Paul reformatted that bin for me. no reason it shouldn't have worked. the port is clean. like i said i wire brushed it twice and wiped it down with alcohol.

Does this hardware the have memory bus solder pads that need to be jumpered to enable the J3 port?

did you have the key on when you read it?

are you sure you didnt kill the ecu by connecting/disconnecting the j3 with the key on ?

Key was on when I read it. I never installed or removed the chip with the ECU powered on. Car will start and run fine with the chip uninstalled.