Aem installed.. have questions regarding AF ratios
Posted 25 September 2019 - 06:33 PM
Zoom clutch, Fidanza flywheel, Stedebani shifter, KSport coilovers, ST swaybars, abs delete, a/c delete, cruise delete, JVE, BSEK, TEP steel brake lines, LSP braided cooler lines, CX Racing radiator, MK1 silicone hoses, MK1 pullies, *DM hard pipes & intercooler,14G turbo, ported exh. manifold, MAF Translator, 3.5" GM maf, Turbo XS RFL bov, *DM 3" exhaust, Cusco front strut bar, TEP rear strut bar, Enkei 92's, HKS turbo timer, AEM wideband, AEM boost gauge, AEM oil pressure gauge, SPA fuel regulator, Hallman boost controller
<SQ Garage> http://www.starquestgarage.com/
Posted 25 September 2019 - 07:10 PM
Posted 25 September 2019 - 09:00 PM
Posted 26 September 2019 - 12:21 PM
The main reason eliminating the factory O2 and using the wideband is because then you know that what the gauge is showing is what the ECU should be seeing. No guessing between is your factory o2 at this and the wideband at that. Next reason is warm up time and response rate.
Is the car running bad or are you just concerned with the AFR readings
Are you sure you spliced into the correct wire for your O2 sensor? You can use an old O2 sensor for its connector and wire that to the AEM. Your factory harness goes untouched and it makes it a plug n play type deal.
Edited by Turbo Cary, 26 September 2019 - 12:23 PM.
Posted 26 September 2019 - 03:19 PM
So i did wire my stock 02 wire to the white aem wire
My afr would hit 17 18 ---- while cruising randomly and the engine would bog down slightly at the same time.. it would correct itself withen seconds.. or tipping into the throttle would correct it.
Before i rewired the 02 my afr's were
14-15 at idle
14 to random --- at cruise low load
10.5 under wot all gears full 11 psi
Runs great idle and wot.
After i rewired the 02 my afr's changed!
Idle is 13.8-14.5
Cruise is a STEADY 15.2-15.4 (no spikes or power loss now)
Wot is still 10.5
Im not happy with the 15.2 15.4 cruise afr.. but i think it is what it is car runs great like that.... ive ruled out pretty much everything (see other post)
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