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    Best cost affective way to check and adjust AFR's

    Got a beater automatic 01 Corolla I slapped some exhaust and an intake on and it got slower after the mods. Checked the plugs after a good flogging and it looks like it's running lean. Any good cost affective ways to tell, I looked at an innovate handheld a few years ago but kinda pricey for something you wouldn't use much nowdays.
    2008 135i - Cobb AP, JB4 G5 w/2Step&FSB, MS DP's, Berk street exhaust, AMS IC, VTT Inlets, UR Intake, ER CP w/Tial BOV, Spec 3+ & Steel FW, CDV delete, Quaife LSD, DSS Axles, M3 control arms, M3 rear SF bushings, M3 Trans bushings, SS brake lines. Pics

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    Get a dyno and take a look at the air/fuel?

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    dyno

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    Dyno -- It'll be ~$100 for some pulls. Otherwise you're looking at an AFR gauge (unnecessary) or a MoTeC AFR Meter for ~$900
    COBB AP ProTune by Bren of ///Bren Tuning
    Akrapovic DP | Helix FMIC | Alpina TCM Flash | Walbro 450LPH Fuel Pump


    "The moment money becomes your motivation, you are immediately not as good as someone who is motivated by passion and internal will." -A. Senna

  5. #5
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    Ended up trying an Innovate LC-1 that I picked up for $135. Seemed to work out pretty nice have an analog output that I could send the the factory ECU while datalogging. Found that it was running lean at basically anything in open loop mode of a richest of 13.7:1. Ended up being the MAF sensor now runs in the 12.5:1 range like it should. So if anybody is working on a cheap project and needs a quick and easy way I'd definitely recommend it, it's made to hard wire which I ended up doing for now but if I wasn't taking over the factory O2 spot I would have skipped the analog output to the ECU and just wired it up to a cigarette lighter adapter and had a cheap tool for the toolbox.
    2008 135i - Cobb AP, JB4 G5 w/2Step&FSB, MS DP's, Berk street exhaust, AMS IC, VTT Inlets, UR Intake, ER CP w/Tial BOV, Spec 3+ & Steel FW, CDV delete, Quaife LSD, DSS Axles, M3 control arms, M3 rear SF bushings, M3 Trans bushings, SS brake lines. Pics

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