Cant figure out missfire.
#1
Cant figure out missfire.
Hey,
Ive bought a rx8 231 2006 2 months ago. While i was doing the test drive there was no missfire. i checked the compression before buing the car and it was at Rotor 1: 8.1, 8.2, 8.2 Rotor 2: 8.2, 8.3, 8.2 (bar) with a rotory compression tester. When i got home the next Day I changed all the fluids (The car has a sohn adapter with castrol 2stroke oil and 10w40 mineral oil as engine oil) in the car. Then me and my friend did a test drive and we noticed that the car was missfiering all over the rew range. I thought it would not be bad to change the ignition system so i ordered and installed a full NGK ingnition system(plugs, wiers, coils). Then after the next test drive. There was no more random missfire code but the moment it hit 4500 rpm the car missfiered and i got the code for missfire on Rotor 1 but it still had the same performance and fealing how the other rx8 i test drived. i did the 20 break stomp a cople of times, switched over the injectors and coils/plugs from rotor 1 to rotor 2, checked the compression again (did not change from what i messured before), the car starts fast warm and cold, went to my mazda dealer to get a software update, Cleaned the maf and ess, removed the battery for like 1 day, i checked the ignition system with a ignition test light(dont know how to call it in English), Checked the car for exhaust gasses in Coolant(There are non), The car has no cat, i realy dont know what to do right now. I did get some logs that i incloud in this post.
Sorry for my bad english if you dont unterstand something please let me know.
Thanks in advance
Patrick
Ive bought a rx8 231 2006 2 months ago. While i was doing the test drive there was no missfire. i checked the compression before buing the car and it was at Rotor 1: 8.1, 8.2, 8.2 Rotor 2: 8.2, 8.3, 8.2 (bar) with a rotory compression tester. When i got home the next Day I changed all the fluids (The car has a sohn adapter with castrol 2stroke oil and 10w40 mineral oil as engine oil) in the car. Then me and my friend did a test drive and we noticed that the car was missfiering all over the rew range. I thought it would not be bad to change the ignition system so i ordered and installed a full NGK ingnition system(plugs, wiers, coils). Then after the next test drive. There was no more random missfire code but the moment it hit 4500 rpm the car missfiered and i got the code for missfire on Rotor 1 but it still had the same performance and fealing how the other rx8 i test drived. i did the 20 break stomp a cople of times, switched over the injectors and coils/plugs from rotor 1 to rotor 2, checked the compression again (did not change from what i messured before), the car starts fast warm and cold, went to my mazda dealer to get a software update, Cleaned the maf and ess, removed the battery for like 1 day, i checked the ignition system with a ignition test light(dont know how to call it in English), Checked the car for exhaust gasses in Coolant(There are non), The car has no cat, i realy dont know what to do right now. I did get some logs that i incloud in this post.
Sorry for my bad english if you dont unterstand something please let me know.
Thanks in advance
Patrick
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09-13-2013 07:23 AM