Car runs very rich on hack
Im running a DOHC ZC, 88 Teg ECU, 14b turbo @ .5 BAR.
I put in the "standard" hack settings, -40 @ 1000 to -36 @ 7500. My car runs very lean at idle with this setting, like 18:1. Previously I had the settings at -29 @ 1000 to -18 @ 7500. These made the car run very rich at WOT like 9:1 but good at crusing around 14:1. I reset to the "standard" setting because it would break up at high RPM from running so rich, and I think its fouling up my plugs.
Is something wrong? Or do I just need to find a median? Would it be best to do this on the street with my wideband or just get it on a dyno ASAP?
I put in the "standard" hack settings, -40 @ 1000 to -36 @ 7500. My car runs very lean at idle with this setting, like 18:1. Previously I had the settings at -29 @ 1000 to -18 @ 7500. These made the car run very rich at WOT like 9:1 but good at crusing around 14:1. I reset to the "standard" setting because it would break up at high RPM from running so rich, and I think its fouling up my plugs.
Is something wrong? Or do I just need to find a median? Would it be best to do this on the street with my wideband or just get it on a dyno ASAP?
Your baseline should be:
(Stock injector size)/(New injector size) - .95
Assuming your new injectors are larger than stock.
After you get that right, so that the engine rund stioch. without boost, you can adjust to compensate for boost.
(Stock injector size)/(New injector size) - .95
Assuming your new injectors are larger than stock.
After you get that right, so that the engine rund stioch. without boost, you can adjust to compensate for boost.
So adjust it to somewhere in between the "standard" setting which makes you too lean, and your old setting which made you too rich... and find the right setting which makes it just perfect....
Matt
Matt
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