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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » Corsa b 20XE diagnostic plug wiring in » Post Reply
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Generation |
posted on 21st Jul 15 at 23:18 |
quote: Same, I get mates to do wiring stuff, just don't understand it | |
*CorsaCal* |
posted on 19th Jul 15 at 21:31 |
Yes i disconnected the battery each time. Same fault. Im pretty sure the mafs i substituted on were no good tho upon closer inspection. Today the car has ran fine but eml has flashed on 3 times during the day. Its so random how it happens. | |
Jed D |
posted on 19th Jul 15 at 13:47 |
quote: thats about as in depth as i get with wires tbh haha not my forte, but once you've done that once its easy | |
Richie |
posted on 19th Jul 15 at 02:01 |
Did you pull the battery after switching the MAF to clear the ECU down and read the codes again? | |
*CorsaCal* |
posted on 18th Jul 15 at 14:49 |
Ah thank you mate! ok ill have a look for a brown/white wire for the diagnostic socket. Update on the fault: i substited the maf which made no difference however i found a broken wire to the air temp sensor (i think it is). Ive now repaired that wire but the fault is still apparent. In fact its much worse now. I think its over fuelling cuz when i rev it with the fault happening i get black smoke from the exhaust n a strong fuely smell. Im pretty stumped with it now. | |
Richie |
posted on 18th Jul 15 at 11:13 |
Btw was looking into why the ECU connector for you isn't working. | |
*CorsaCal* |
posted on 17th Jul 15 at 20:50 |
Cheers mate. I havent replaced the maf yet but i can confirm that with the engine running the other 2 faults arent active so its gotta be the maf. I tried a snap on modis n it wont comunicate so have ordered a switch to do the switch trick u guys have. Ill let u know if the maf improves matters. Cheers again. | |
Richie |
posted on 16th Jul 15 at 15:08 |
Good luck! Report back and let us know how you got on. | |
*CorsaCal* |
posted on 16th Jul 15 at 06:45 |
Ok cool. Cheers lads. I have found 2 spare maf sensors so ill clear the codes n substitute the maf to see what happens. Cheers again :thumbs: | |
Richie |
posted on 15th Jul 15 at 23:08 |
Now that you have a working port then a Tech1 will work (pre 1997, tech2 was for post 1997) | |
*CorsaCal* |
posted on 15th Jul 15 at 17:38 |
Cheers lads! ill have to give the switch mod a go. Is there any way to clear the faults like this or does it need a code reader? Did either of u ever manage to get a code reader to work on ur cars? | |
Generation |
posted on 15th Jul 15 at 15:38 |
Exactly as Jed said, I even did same with the switch | |
Jed D |
posted on 15th Jul 15 at 10:02 |
iirc crank sensor would come up as a fault anyway as its not reading a pulse from the crank when just the ignition is on and engines off, could be wrong though | |
*CorsaCal* |
posted on 15th Jul 15 at 06:48 |
Ive got the numbers written down a home but the sensors where MAF, hall efect sensor and crank sensor. The car still isnt running quite right but i think MAF is the most likely even tho thats only a year old. I was just wanting to clear em out and then see which comes back cuz the faults stored could be ages old. | |
Richie |
posted on 15th Jul 15 at 01:10 |
On Bosch Motronic systems you literally just disconnect the negative battery terminal for 5 minutes. But if the fault condition still exists when you start the car again - it will instantly flag. | |
*CorsaCal* |
posted on 14th Jul 15 at 20:24 |
Cool. Thats helpfull but doesnt mention clearing the codes. I have 3 codes in it and want to clear em an start again. Any idea if thats possible? | |
Richie |
posted on 13th Jul 15 at 19:32 |
There are code readers but they are super flaky and usually serial | |
*CorsaCal* |
posted on 13th Jul 15 at 18:35 |
I have just found that there was another brown/yellow wire in the loom. I have now cut the one already joined and joined this on instead. All apears to be the same except i can now do the paperclip test as mentioned in the tuturials of this site. It appears that my car is a 16 pin plug but contains ALDL codes. Does anyone know if such thing as an ALDL code reader exists. Cheers :thumbs: | |
*CorsaCal* |
posted on 13th Jul 15 at 17:07 |
Thanks richie. The wires look to be connected in a black plug that looks ok. I have worked out what wires i have at which pin and im wondering if anyone knows if these are correct. Pics: | |
Richie |
posted on 13th Jul 15 at 10:40 |
The power to the diagnostic port doesn't get interfered with as part of the conversion - whoever did it probably hasn't hooked up the TX/RX ECU link wires. | |
*CorsaCal* |
posted on 11th Jul 15 at 22:09 |
Hi guys. |