Quote:
Originally Posted by Hiko
My modifications are P&L EL catted header, K&N drop in filter, Crawford BPB's and an OFT running a slightly modified stage 1 tune.
I'm noticing that the actual AFR is nowhere near the commanded at the lower rev range. Is this something that modifying the engine load would help or does it seem like there might be something else causing this?
https://datazap.me/u/omnihiko/log-15...zoom=1219-1472
The main reason I ask is because the engine loads I'm logging are much lower than the limits due to altitude (Denver), and the pressure to load modification table seems to be lowering it even further.
Thanks if advance for any insight/advice! |
The actual load is always going to be determined by the what the engine is able to produce (how much air it can pump through) and the atmospheric conditions (how much air is available). So however you set limits etc. is not going to affect the actual load directly.
They are used for calculations by the ECU. You are not going to get this sorted out by using load limits or load compensation. You probably need to look at the whole tune starting with MAF and AVCS.
Also as I side not, I would ditch the BPBs. They don't do much for you when tuned and if anything they are counter productive to a header that is supposed to generate more top-end.