Sunday, May 19, 2013

Home Made OBD2 Scanner

Home Made OBD2 Scanner 

 

OK, so the check engine light on my 97 Corolla came on. Rather than take it to one of the parts stores to get the code read, I looked for scan tools on Amazon. There were a bunch of them. This one was for under 20 bucks delivered. Its ratings were good, so I took a chance on it. It came four days later. The shipment was undamaged. I opened it up, read the instructions, which seemed OK to me, and plugged it in. Once plugged into the car, I turned the car to the position just before it cranks over and the tool read the code. Actually, it read all three codes that had been stored in the car's computer. I looked the codes up in the instruction book..in my case the code was P0301, P0302, and P0303, which indicate misfires in the 1st, 2nd, and 3rd cylinders. I followed this up with some research on the net and then went back out and used the tool to erase the codes, which it did with no problems. So far the check engine light has not come back on, but I will do a tune up on the car (myself) anyway. So with just this one use, I figure I saved enough money to cover the cost of the tool. I'm pretty happy with this, since now I won't have to chase all over the place to get the code read when the check engine light comes on any of my cars.
sS

Home Made OBD2 Scanner 

This inexpensive scan tool does everything the much more expensive tools do. It reads the fault codes. It resets the fault light after the repair is made. It can even read the serial numbers of certain vehicles. It is powered from the vehicle socket and has a very bright easy to read display. An instruction book is included with the different fault codes.

Home Made OBD2 Scanner 

I had this scanner 9 months before I had to use it it found the code on my 00 BMW 323...I bought the Camshaft Sensor installed it and reset the CPU with code reader and saved over 2 hun dollars .....great tool.. first use pays for itself...never used CD ...I look up codes on Google.....Excellent buy....
Home Made OBD2 Scanner 
Worked completely as stated. Helped diangose a problem and was able to pass smog, stress free. Would definitely recommend for the price.

Home Made OBD2 Scanner 

I replaced one of the 2 CAT's on my 1998 BMW in 2012. Also in 2012, I ran over a stick that just happened to knock the wires loose off of the same CAT's O2 sensor.

In 2013, when it was inspection time here in Texas, the car did not pass, and I was told by the inspectors it had a O2 sensor fault code. I took the car for replacement of the O2 sensor, which was fine. But I wanted to make sure it didn't have any codes and was "ready" for inspection.
Home Made OBD2 Scanner
If you're not familiar, you're reading this because you're going to go through the same confusion and pains I had to to get my car inspected. It seems very confusion, but if you have this tool, it can help ALOT. Not only does the car have to have 0 fault codes on the OBD fault codes, but also, after you reset the codes, the car has to be driven a certain number of miles, under certain conditions etc... to get the OBD computer to be satisfied that it has had the time to run all fault code checks. So, if you fail because you have codes: first, fix the problems, then use the Autel to reset the codes, and then use the Autel to see if your OBD is "ready."

So to continue my story, after the O2 sensor was replaced, I used the Autel to reset my codes. Drove around using the car as usual, and the OBD computer was happy there was no more O2 fault code. Great, right? But not so great because the new CAT was not as powerful as the original BMW CAT, and now the OBD was not happy with that and like a true hissy cat, it threw a new fault code, a "CAT" fault code. I moaned, and reset the codes again, and drove around again (it usually took about 80 to 100 miles of driving), and checked the codes again. This time the OBD was happy. It liked the new O2 sensor, and apparently it had decided the new CAT was GOOD ENOUGH. When I went back to inspections, presto, the BMW is legal to drive another year.
Home Made OBD2 Scanner

Tuesday, August 21, 2012

Home Made OBD2 Scanner

Select "Update" from the PC software menu --- and it will say a PC_SOFTWARE update is available, but your hardware is "up to date".
Download the new PC software (17 mb file), install, and run it.
 
Hit "Update" again now, and it will say that a FIRMWARE update is available. Download the new 'BIN' file (2 mb), and install it in the tool as outlined in the directions.
Currently I have PC_SOFTWARE 1.33, and FIRMWARE 1.02

Home Made OBD2 Scanner


Home Made OBD2 Scanner

i recently purchased a 3140 scanner and have found it works really well on obd2 vehicles but on obd1 it has some short falls i own a 93 dodge truck and it will flash out 4 codes through the check engine light but the scanner only retrieves 2 of them
Home Made OBD2 Scanner
i also tried it on a 92 chevy astro van with a egr code the scanner did not retrieve that code either i emailed the companys tech support a couple weeks ago about it and still have got no reply figured this might help some people considering their purchase p.s.it does not work on a 95 grand am with a 3100
Home Made OBD2 Scanner
  • Provides SAE enhanced Live Data - views, graphs, records, and plays back live PCM data streams on screen
  • Designed to retrieve diagnostic codes in all OBD2 (1996 and newer) and some of the most popular OBD1 (1981 to 1995) vehicles
  • Communicates with all OBD 2 protocols: C.A.N. (Controller Area Network), ISO 9141, J1850PWM, J1850VPW, KWP 2000 ISO 14230-4
  • Features built-in memory to store codes, even when reader is unplugged
  • Unit can be USB (cable included) flash updated with a standard Windows® PC (OBD-PC Link(TM) software required / included with tool)
Home Made OBD2 Scanner