I'd start with a near empty tank, try to go for a 3:1 ratio of 91 and e85. If the car doesn't like the mix add another gallon of 91 until it runs fine. You don't need it to run perfect under wot, maybe half throttle. People have done 1:1 ratios without issues so I think you'll be okay.
Car wont pass smog..... need some help!!
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I'd start with a near empty tank, try to go for a 3:1 ratio of 91 and e85. If the car doesn't like the mix add another gallon of 91 until it runs fine. You don't need it to run perfect under wot, maybe half throttle. People have done 1:1 ratios without issues so I think you'll be okay.Your signature picture has been removed. Refer to the Signature and Avatar Guidelines in The Rules.Comment
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If your engine was worn HC emissions would be high. But you have good ring and valve sealing so its not your engine. Nobody wants to spend money on an emission repair. The cat used all of the O2 gases which could indicate it maybe efficient. Have it diagnosed you may have a CTS or Maf underestimating the amount of air coming into the engine. E30's fail at about a 36% rate for there initial inspection. But they are worth repairing.Comment
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Just mixed in 3 gallons of e85 with 4 gallons of 91, running E42 now, no problems at all. Bashed it a bit to see if I could get a code and nada, lost some power though, like going back to a stock tune. Will post results tomorrow, here's a nice calculator I found:
http://www.intercepteft.com/calc.htmlYour signature picture has been removed. Refer to the Signature and Avatar Guidelines in The Rules.Comment
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Got to the gas station right when my gas light comes on, tank up like clockwork so I know when I fill up when the light comes on. It'll take 14.5 gallons before the nozzle clicks, so I added 3 gallons of e85 and 2 more gallons of 91 on top of the 2 gallon reserve.
Gas in CA is E10 minimum, so it ends up being 42% ethanol.Comment
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Lol didn't make a lick of difference. Still failing HC and NOx. Damn interwebz.Comment
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Your signature picture has been removed. Refer to the Signature and Avatar Guidelines in The Rules.Comment
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this is because you have an air leak somewhere. get the car smoke tested and then fixed.
High NO, means too lean, high NO at 15 only means air leak.
High CO means too rich, could be bad cat or sticky injectors or wrong injectors.
High HC, means you are not burning correctly and usually means timing issue, bad ignion wires, cap/rotor, or spark plugs.
High everything or everything is close to the max means you need a new cat.
follow these steps before chasing rabbit trails.Comment
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this is because you have an air leak somewhere. get the car smoke tested and then fixed.
High NO, means too lean, high NO at 15 only means air leak.
High CO means too rich, could be bad cat or sticky injectors or wrong injectors.
High HC, means you are not burning correctly and usually means timing issue, bad ignion wires, cap/rotor, or spark plugs.
High everything or everything is close to the max means you need a new cat.
follow these steps before chasing rabbit trails.Your signature picture has been removed. Refer to the Signature and Avatar Guidelines in The Rules.Comment
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1988 325 non-letter Seta "Bronzit"
1991 325ic "Laguna Green" (Sold)
1993 325i "Laguna Green/Silver" (Sold)
1998 528i "Artic Silver" m-sport(totalled by drunk driver)
2000 528i Titansilber/gray m-sport
2000 528i Titansilber/black m-sport(sold)
2001 525i Anthracite m-sport(sold)
2013 750i Black/Black m-sport "Beast"Comment
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hope it gets figured out soon have you tried adjusting the valves? it could help if your tuning is out of wack it might mess up mixture. hope the new boot helpsComment
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