Subject	One factor - increased workload
Posted by	bliZard on June 16, 2008 at 8:52 AM
	This message has been viewed 153 times.
In Reply To	injector question posted by 2T-Z on June 14, 2008 at 10:24 PM
Message	the best explanation for this that I have seen is that the A/F ratio is controlled by pulsing the injectors as a bank (right/left) - if one injector goes, the O2 sensor sees a lean condition on that bank and the ECU increases the fuel flow on the bank that the problem is occurring on. This makes the remaining injectors work harder (2 injectors trying to supply what 3 are supposed to) and makes the 2 working cylinders run rich. So, you take injectors with 100k miles on them, then start making them work even harder when one fails, and their failure rate increases. The lesson I took from this is to get failed injectors fixed quickly.
Follow Ups	injector question - 2T-Z 22:24:58 06/14/08 The cause of the first injector going is also occuring - Guapo 22:59:25 06/14/08 yep (n/m) - aliaZ 13:42:46 06/15/08 Thanks - 2T-Z 20:43:53 06/15/08 Best theory - ethanol in the gas causes a chemical - jzack 23:02:54 06/14/08 This has not been proven! It is only conjecture at - twinturbineZ 23:28:29 06/14/08 Yep - theory only. Not sure if they'll ever be a - jzack 08:39:26 06/15/08 Good POLL question. - ThunderZ 08:56:56 06/15/08 Maybe if people used the polls forum... (n/m) - na300zx (OH) 09:21:27 06/15/08 Proven? No. Conjecture? Hardly. The number of early style - Guapo 10:57:40 06/15/08 I saw that Guapo..but that has nothing do with the - twinturbineZ 12:10:05 06/15/08 12 volts constant power was never a problem - aliaZ 13:40:29 06/15/08 nevermind the fact that Nissan changed the design of the - Guapo 15:50:49 06/15/08 here's the deal..just because you posted a hazmat - twinturbineZ 20:18:58 06/15/08 wow - aliaZ 22:23:51 06/15/08 have you? (n/m) - twinturbineZ 23:01:24 06/15/08 Sit on your hands. (n/m) - Kenny 22:53:08 06/15/08 I've seen both- replace 1 or 2 after 100k miles that break, - ThunderZ 09:01:54 06/15/08 Maybe the ethanol absorbs water making it conductive - TTkeeper 00:32:12 06/16/08 Actually the theory around the failures does assume - jzack 16:51:08 06/16/08 Not possible! you guys are missing the most important - twinturbineZ 19:52:21 06/16/08 relax (n/m) - Guapo 22:13:14 06/16/08 and what is that? (n/m) - aliaZ 22:39:00 06/16/08 Please enlighten us. (n/m) - ThunderZ 12:15:53 06/18/08 One factor - increased workload - bliZard 08:52:02 06/16/08 interesting - onewheelf4 09:05:49 06/16/08
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