uberdata...
uberdata...
Ok, uberdata is just like Hondata only it's free. I am speaking with several knowledgable individuals who seem to think that if we convert to OBD1 we shouldnt have any problems using uberdata. Check out my post on the uberdata forum for more details.
http://www.ecimulti.org/uberdata/for...y;threadid=564
To use uberdata you will need to modify your ECM and purchase a burner so you can burn your .bin files onto a chip. They seem to think that we could use a p28 OBD1 ECM. Anyone else have any thoughts?
Go ahead and download the latest version of uberdata it is a windows based application that is very user friendly.
http://www.ecimulti.org/uberdata/for...y;threadid=564
To use uberdata you will need to modify your ECM and purchase a burner so you can burn your .bin files onto a chip. They seem to think that we could use a p28 OBD1 ECM. Anyone else have any thoughts?
Go ahead and download the latest version of uberdata it is a windows based application that is very user friendly.
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well consider this, with obd 1 u have alot of electronics to worry about less, meaning less things to try and fool the ecm with. with obd1 its alll lesss, less hassle, less problems, obd2 on the other hand contains more options to just modify electronics on the vehicle, not neccessarily just that, but u can do alot more with obd2, i havent heard of anyone running obd1 in their civic before, it might be hard to rewire up the harness to the new ecm, but im sure someone will do it.
why do you want to go obd 1, is there a point around this, maybe becuase its less to work with as far as engine work goes, easier to test and tune
why do you want to go obd 1, is there a point around this, maybe becuase its less to work with as far as engine work goes, easier to test and tune
When you remove the factory ECU and replace it with an OBD1 you will have at least 2 issues to deal with.
1. The coolant gauge in the factory cluster gets it's data from the mutiplex controller, which gets it from the ECU via the datastream. The OBD 1 ECU does not have this so the gauge will not work.
2. The ECU increases the idle motor position when the A/C turns on. This information also is on the datastream so the ECU will not increase the airflow to the engine in preperation for the A/C compressor to kick on. So in short, the engine will likely die, or almost die every time the A/C cycles on. I dont remember but the A/C compressor may actually be controlled by the ECU, which may not work also. Not sure on that last part.
1. The coolant gauge in the factory cluster gets it's data from the mutiplex controller, which gets it from the ECU via the datastream. The OBD 1 ECU does not have this so the gauge will not work.
2. The ECU increases the idle motor position when the A/C turns on. This information also is on the datastream so the ECU will not increase the airflow to the engine in preperation for the A/C compressor to kick on. So in short, the engine will likely die, or almost die every time the A/C cycles on. I dont remember but the A/C compressor may actually be controlled by the ECU, which may not work also. Not sure on that last part.
Originally posted by SaiyanMatador
well consider this, with obd 1 u have alot of electronics to worry about less, meaning less things to try and fool the ecm with. with obd1 its alll lesss, less hassle, less problems, obd2 on the other hand contains more options to just modify electronics on the vehicle, not neccessarily just that, but u can do alot more with obd2, i havent heard of anyone running obd1 in their civic before, it might be hard to rewire up the harness to the new ecm, but im sure someone will do it.
why do you want to go obd 1, is there a point around this, maybe becuase its less to work with as far as engine work goes, easier to test and tune
well consider this, with obd 1 u have alot of electronics to worry about less, meaning less things to try and fool the ecm with. with obd1 its alll lesss, less hassle, less problems, obd2 on the other hand contains more options to just modify electronics on the vehicle, not neccessarily just that, but u can do alot more with obd2, i havent heard of anyone running obd1 in their civic before, it might be hard to rewire up the harness to the new ecm, but im sure someone will do it.
why do you want to go obd 1, is there a point around this, maybe becuase its less to work with as far as engine work goes, easier to test and tune
Originally posted by Mirage
When you remove the factory ECU and replace it with an OBD1 you will have at least 2 issues to deal with.
1. The coolant gauge in the factory cluster gets it's data from the mutiplex controller, which gets it from the ECU via the datastream. The OBD 1 ECU does not have this so the gauge will not work.
2. The ECU increases the idle motor position when the A/C turns on. This information also is on the datastream so the ECU will not increase the airflow to the engine in preperation for the A/C compressor to kick on. So in short, the engine will likely die, or almost die every time the A/C cycles on. I dont remember but the A/C compressor may actually be controlled by the ECU, which may not work also. Not sure on that last part.
When you remove the factory ECU and replace it with an OBD1 you will have at least 2 issues to deal with.
1. The coolant gauge in the factory cluster gets it's data from the mutiplex controller, which gets it from the ECU via the datastream. The OBD 1 ECU does not have this so the gauge will not work.
2. The ECU increases the idle motor position when the A/C turns on. This information also is on the datastream so the ECU will not increase the airflow to the engine in preperation for the A/C compressor to kick on. So in short, the engine will likely die, or almost die every time the A/C cycles on. I dont remember but the A/C compressor may actually be controlled by the ECU, which may not work also. Not sure on that last part.
2.) I'm not positive but I think OBD1 ECU's had to deal with A/C too <wink...wink>
Remember I would not be using an OBD2 ECU I would be using a p28 OBD1 ECU. The d17 engine itself is not much different from the d16 engine. I would love to see a newly created uberdata basemap work on a d17.
Originally posted by dober
1.) There has to be alternative coolant guages on the market.
1.) There has to be alternative coolant guages on the market.
Originally posted by dober
2.) I'm not positive but I think OBD1 ECU's had to deal with A/C too <wink...wink>
2.) I'm not positive but I think OBD1 ECU's had to deal with A/C too <wink...wink>
One more item. The D17A1/D17A2's have a different cam/crank tooth pattern than the earlier Hondas. At the very least, the trigger wheel on the cam gear would have to be modified to be the same as the OBD1/2 engines. You would have to check on the crank trigger & TDC trigger patterns as well.
Last edited by Mirage; Apr 27, 2004 at 05:10 PM.
Originally posted by dober
The d17 engine itself is not much different from the d16 engine.
The d17 engine itself is not much different from the d16 engine.
Anyone know this?
I've been reading up on the differences since I posted I'm not sure it's feasible to convert to OBD1 like they suggested. Based on what I've found and what Mirage is saying, it's going to be costly.
Good info Mirage.
Good info Mirage.
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Joined: Aug 2003
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From: Tampa, FL
Rep Power: 0 Originally posted by 2blu
I don't think that obd3 has come out yet
I don't think that obd3 has come out yet
I could be wrong, but if you want to find out the real answer to which version of on board diagnostics our 7th gens use, u might have to do some thorough searchin. I heard from someone, plus I know for a fact I read it in a swap thread somewhere that 5th gens= obd1, 6th gens=obd2 and 7th gens use obd3 unless that was a complete error and honda just continued to obd2 with a more complex set up.
Currently, the On Board Diagnostics (OBD) level is 2. OBD-3 is not finalized and there is no schedule for implementation yet.
Remember, the OBD rules are governmental requirements and have no direct coorelation with Honda's model releases.
Remember, the OBD rules are governmental requirements and have no direct coorelation with Honda's model releases.
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Joined: Aug 2003
Posts: 1,620
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From: Tampa, FL
Rep Power: 0 Originally posted by Mirage
Currently, the On Board Diagnostics (OBD) level is 2. OBD-3 is not finalized and there is no schedule for implementation yet.
Remember, the OBD rules are governmental requirements and have no direct coorelation with Honda's model releases.
Currently, the On Board Diagnostics (OBD) level is 2. OBD-3 is not finalized and there is no schedule for implementation yet.
Remember, the OBD rules are governmental requirements and have no direct coorelation with Honda's model releases.
Ahh ha ok, so we are obd2 then....thanks for the correction
