BLM @ 142 too high?

[Eric Stage I]

Take the fuel psi up a little more, 45psi line off, then reset the ECM to let it relearn. Take a drive and see what the BLM's do after it warms up.

 

[Eric Stage I]

Also, make sure your chip and injectors are matched. What fuel, pump gas?

 

[87chrisss]

sup eric well i started messing with the tune i took out some fuel base and its spooling up alot better the bl's dropped a bit also not sure if i want to keep taking out fuel.. so i'll retry later or in the morning ive done so much to this POS today im drained.. im going based on your write up on tuning 6.0 chip.. lb up to #4 then dropped it from 128 to 118 and kept my wot a/f the 10.8 dont really want to mess with the mid fueling so im just keeping that @ 99, like you suggested maybe i dropped it some not sure i'll check in the am

 

[The Darkside]

Sounds like youre going in the right direction...

 

[kidglok]

if your using a 6.0 chip, whats the wideband showing at idle?

 

[87chrisss]

14.7 a little over and under it'll vary

 

[mtbraun]

Also, make sure your chip and injectors are matched. What fuel, pump gas?

Will running higher octane in the tank than what the chip was burned for cause high BLM?

 

[Eric Stage I]

Different octanes of gasoline won't affect it a huge amount, but if the fuel was leaded, it might have killed the O2 sensor.

Trying to run a mix of other fuels like E85, will definitely throw the BLM's off.

 

[87chrisss]

yea well that could be my culprit, i decided to run straight 93 this tank...but regardless of the fact 93 pump has ethanol in it

 

[mtbraun]

Different octanes of gasoline won't affect it a huge amount, but if the fuel was leaded, it might have killed the O2 sensor.

Trying to run a mix of other fuels like E85, will definitely throw the BLM's off.

I was mixing 91 and 110 unleaded. No e85.

 

[87chrisss]

i was mixing pump with e85 how would that make blm higher?

 

[Eric Stage I]

E85 requires a different air/fuel ratio to burn correctly (stoich). A larger amount of fuel is required. Since the chip is not calibrated for it, the a/f goes lean. The computer senses the lean condition using the O2 sensor and adds fuel to compensate. The result is higher BLM.

 

[87chrisss]

i have to look into my tune

 

[87chrisss]

Take the fuel psi up a little more, 45psi line off, then reset the ECM to let it relearn. Take a drive and see what the BLM's do after it warms up.

So after some thought decided to start over again took TT advice on raising FPR up a bit more so i did and magically the blms crashed down to between 126-130 also i have to admit i changed the fpr yesterday back up to 43 and i never reset the computer after raising the fuel pressure after i did today i did reset the ecm and blm came down..thanks TT im also glad i took header off yesterday and welded her..too bad my welding skill suck looks like an old dogs pile of shit lol