OBD1 cable/Code reading

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   I just purchased an OBD1 to USB cable so i could read codes 

and get live sensor readings, my problem is i have no idea 

what program to use. Anyone have experience? Ive tried some 

and they froze and wouldnt work properly. All i really need 

to do is read codes what program (free) can i get that 

tells me what codes im throwing?

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orange Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 15 September 2010 Location: United States Status: Offline Points: 106	Post Options Post Reply Quote orange Report Post Quote Reply Topic: OBD1 cable/Code reading Posted: 18 January 2011 at 7:51pm
	I just purchased an OBD1 to USB cable so i could read codes and get live sensor readings, my problem is i have no idea what program to use. Anyone have experience? Ive tried some and they froze and wouldnt work properly. All i really need to do is read codes what program (free) can i get that tells me what codes im throwing?
	Orange 4.9

CFoss Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 13 February 2007 Location: Canada Status: Offline Points: 580	Post Options Post Reply Quote CFoss Report Post Quote Reply Posted: 18 January 2011 at 10:35pm
	I suspect you will need tunerpro rt (rt = real time) with the correct file loaded for your ecu. Or, you may be able to use a program called freescsan, which I have not tried, but have heard about. Found this: http://www.aldlcable.com/ Check out the software section for some leads. Chay
	86 SE 3.4

Romeo Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Post God Joined: 16 November 2008 Location: Canada Status: Offline Points: 3033	Post Options Post Reply Quote Romeo Report Post Quote Reply Posted: 19 January 2011 at 12:18am
	Oh, I've used FreeScan, it's fantastic. Takes a little bit to learn the interface, but after that, it's a great program.
	Never shift into reverse without a back-up plan.

orange Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 15 September 2010 Location: United States Status: Offline Points: 106	Post Options Post Reply Quote orange Report Post Quote Reply Posted: 19 January 2011 at 3:19pm
	I spent all night on that web site trying to get ONE of those programs working, non of them will run on my computer for some reason. I got Tunerpro to run but have no idea how to use it. Also as we speak im redownloading freescan and it seems to be working, so anyone with experience with these two programs please tell me how to use them haha Thanks for fast replies
	Orange 4.9

orange Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 15 September 2010 Location: United States Status: Offline Points: 106	Post Options Post Reply Quote orange Report Post Quote Reply Posted: 21 January 2011 at 5:52pm
	Nevermind, i got it all figured out. Codes im having... Code 22- Open TPS Circuit Code 32- Open MAP Sensor Code 65- C/C Servo Position Sensor Failure I have no cruse control any more but my TPS and MAP were fine, or so i thought, also code 22 only comes on after i start it, and if i clear the codes while it is running then code 22 goes away but the idle goes to 3.5k and code 32 comes on immediately after codes are cleared. What does this mean?
	Orange 4.9

CFoss Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 13 February 2007 Location: Canada Status: Offline Points: 580	Post Options Post Reply Quote CFoss Report Post Quote Reply Posted: 24 January 2011 at 8:41am
	On your car, is the +5 volt sensor power or ground common between these items? Perhaps you have an intermittent wire/ecm connection. It could also be a crapy engine ground. Chay
	86 SE 3.4

orange Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 15 September 2010 Location: United States Status: Offline Points: 106	Post Options Post Reply Quote orange Report Post Quote Reply Posted: 24 January 2011 at 4:43pm
	Im in the process of checking the sensor power and grounds but i checked the engine ground and it is good and those two sensors are on the same ground line as some others so i think its the power wire. Also if it helps this is on the 4.9 fiero if you dont recognize me.
	Orange 4.9

orange Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 15 September 2010 Location: United States Status: Offline Points: 106	Post Options Post Reply Quote orange Report Post Quote Reply Posted: 26 January 2011 at 5:10pm
	Update* I fixed the MAP sensor problem by cutting the wires and rewiring the sensor with different wires. And im about to fix the TPS. But i need some HELP!!! After i fixed the MAP I started it up and a code saying P/N or PRND321 input problem, i have checked both trans input B and C as they need to be grounded and they are. I dont see why that code is coming up. Also the 4.9 HEI distributor apparently has lots to go wrong, first just CAM sensor faulty and I fixed that, but then I got a code saying Distributor signal interrupt. I have no clue what that is referencing, any ideas? Please help! I want it running with no codes this weekend.
	Orange 4.9

CFoss Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 13 February 2007 Location: Canada Status: Offline Points: 580	Post Options Post Reply Quote CFoss Report Post Quote Reply Posted: 27 January 2011 at 10:00am
	I don't have any experience with those failure codes. I'm familiar with ecms, not pcms (powertrain control modules) which includes tranny codes etc. What transmission do you have? Sounds like the gear select feeds back into the module (Or is supposed to anyway). Distributor signal interrupt sounds like a loss of pulses to the 'tach' input. Just a guess though. Chay
	86 SE 3.4

orange Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 15 September 2010 Location: United States Status: Offline Points: 106	Post Options Post Reply Quote orange Report Post Quote Reply Posted: 27 January 2011 at 12:32pm
	I have the 4 speed munci
	Orange 4.9

orange Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 15 September 2010 Location: United States Status: Offline Points: 106	Post Options Post Reply Quote orange Report Post Quote Reply Posted: 27 January 2011 at 8:37pm
	*Update run 1: I replaces the control module in the distributor and my distributor signal interrupt code went away, I now have no codes that make the SES lamp come on but i still have the P/N or PRND321 input problem code. run 2: It runs ok now it idles at 1500 rpms though and is running quite rich, and im not thinking that the gear input code is making it run funny. The TPS code came back too, but the code goes away after reaching about 3500rpms under acceleration. I found that the computer reads TPS% to be 60% on idle but normal when into the gas. Im thinking this is why is running rich? computer thinks butterfly valves are open when they arent so it adds more fuel? Also like i said the TPS seems to be working fine after 60% throttle so as far as wiring where should i start looking for a problem?
	Orange 4.9

Romeo Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Post God Joined: 16 November 2008 Location: Canada Status: Offline Points: 3033	Post Options Post Reply Quote Romeo Report Post Quote Reply Posted: 27 January 2011 at 10:53pm
	Have you tried back-probing the TPS itself, to see what it's putting out at idle/partial throttle/WOT? And then checking the PIDs to see what the ECM is actually seeing from it? You are correct, if the car can't figure out if the MAF is incorrect, or the TPS/MAP is incorrect, it will default to a rich condition.
	Never shift into reverse without a back-up plan.