datalogging - Diagnostics Port, Diagnostics mode, fuses?? - 3000GT/Stealth International Message Center

92stealth15g · 05-09-2008, 07:02 PM

I have been having trouble getting my HHH datalogger to work on my 92 R/T TT, and someone told me somthing about swapping fuses around to get the car to go into diagnostics mode? Does this sound right to anyone? If so, how exactly is this done? Thanks.

andyvr4 · 05-09-2008, 10:33 PM

I'm not aware of any fuses that you can change to make this happen. In order to put the ECU into diagnostic mode on an ODBI car you need to short pin 1. Check out this page on stealth316 that talks about reading the codes out of an ODBI ECU.

Steve '93ES · 05-09-2008, 11:25 PM

Quote:

In order to put the ECU into diagnostic mode on an ODBI car you need to short pin 1.

Do not short pin 1.
To put the ECU into Diagnostic mode ground pin 10.
You do NOT have to go into diagnostic mode to read the codes, just follow the instructions in the link Andy provided.

Now that that's cleared up, I hooked up the HHH with my laptop to my '92 R/T TT with no problem. No fussing with fuses or anything at all.
What kind of set-up do you have and what problems are you having?

92stealth15g · 05-10-2008, 12:57 AM

hey, thanks for the help everyone. My setup is pretty basic. its the HHH with the palm pilot and all the cables for the first gen OBD1. I hooked up red, green, and blue to the pins that the instructions said to hook to and The palm pilot doesnt read anything out. there are just a bunch of dashes next to everything like how it would look if there wasnt anything hooked up. The ecu is reading that there is somthing there because of the ABS light.

oh yea, and the program is MMCD.

andyvr4 · 05-10-2008, 04:29 PM

Quote:

Originally Posted by Steve '93ES

Do not short pin 1.
To put the ECU into Diagnostic mode ground pin 10.
You do NOT have to go into diagnostic mode to read the codes, just follow the instructions in the link Andy provided.

Thanks for correcting me, I meant ground and for some reason said short. The funny thing is what would you even short it to since I just said one pin

. Thanks for correcting it though.

92stealth15g · 05-11-2008, 03:29 AM

alright, so what am i doing wrong? i have red connected to the top pin, i think its 1, then blue on 10, and green on 12 I think. When i turn it on I dont get any readouts.

92stealth15g · 05-11-2008, 04:30 PM

Hey everyone. I figured it out, i feel stupid, the connector going into the Palm needs to be held in because its kind of loose.

05-09-2008, 07:02 PM	#1 (permalink)
92stealth15g Certified White Boy Join Date: Aug 2007 Location: Laramie, Wyoming Drives: 1992 Stealth RT/TT Trader Rating: (3)	datalogging - Diagnostics Port, Diagnostics mode, fuses?? I have been having trouble getting my HHH datalogger to work on my 92 R/T TT, and someone told me somthing about swapping fuses around to get the car to go into diagnostics mode? Does this sound right to anyone? If so, how exactly is this done? Thanks. __________________ 1992 Dodge Stealth R/T Twin turbo AWD, Dynamic Racing stage II heads, 99 lifters, 6-speed Getrag from 99 vr4, Southbend Stage 4 DXD-B Clutch, TEC 15g's, Greddy blow off valve, Dejon Powerhouse Blow-Thru Intake Pipes, DSM sidemounts, Denso fuel pump, 550cc fuel injectors, Apexi SAFC, HKS VPC, Apexi AVCR, msd ignition dis-4, MSD 8.5mm wires, NGK coppers 1 stage colder, y-pipe, borla catback, ATR downpipe, highflow cat, Lowered, Nitto tires. In the future: intercooler hard pipes, hopefully close to 500 horsepower after a good tune. When im rich: A second gen TD-05 VR4 monster.

05-09-2008, 10:33 PM	#2 (permalink)
andyvr4 3/S enthusiast Join Date: Feb 2004 Location: Salem/Blacksburg, VA Drives: 91 VR-4, 99 Zx2 Trader Rating: (1)	Re: datalogging - Diagnostics Port, Diagnostics mode, fuses?? I'm not aware of any fuses that you can change to make this happen. In order to put the ECU into diagnostic mode on an ODBI car you need to short pin 1. Check out this page on stealth316 that talks about reading the codes out of an ODBI ECU. __________________ Mods ------------------------- 1991 Mitsubishi 3000gt VR4---------------My website If you live in the Delaware, Maryland, or Virginia area check out our website and 3si chapter forum

05-10-2008, 12:57 AM	#4 (permalink)
92stealth15g Certified White Boy Join Date: Aug 2007 Location: Laramie, Wyoming Drives: 1992 Stealth RT/TT Trader Rating: (3)	Re: datalogging - Diagnostics Port, Diagnostics mode, fuses?? hey, thanks for the help everyone. My setup is pretty basic. its the HHH with the palm pilot and all the cables for the first gen OBD1. I hooked up red, green, and blue to the pins that the instructions said to hook to and The palm pilot doesnt read anything out. there are just a bunch of dashes next to everything like how it would look if there wasnt anything hooked up. The ecu is reading that there is somthing there because of the ABS light. oh yea, and the program is MMCD.

05-11-2008, 03:29 AM	#6 (permalink)
92stealth15g Certified White Boy Join Date: Aug 2007 Location: Laramie, Wyoming Drives: 1992 Stealth RT/TT Trader Rating: (3)	Re: datalogging - Diagnostics Port, Diagnostics mode, fuses?? alright, so what am i doing wrong? i have red connected to the top pin, i think its 1, then blue on 10, and green on 12 I think. When i turn it on I dont get any readouts.

05-11-2008, 04:30 PM	#7 (permalink)
92stealth15g Certified White Boy Join Date: Aug 2007 Location: Laramie, Wyoming Drives: 1992 Stealth RT/TT Trader Rating: (3)	Re: datalogging - Diagnostics Port, Diagnostics mode, fuses?? Hey everyone. I figured it out, i feel stupid, the connector going into the Palm needs to be held in because its kind of loose.

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