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  1. Replies
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    IIRC Steveo had a Pi Data Logger on his website ...

    IIRC Steveo had a Pi Data Logger on his website

    Mitch
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    That comment above alerted me. You temp sensor...

    That comment above alerted me.
    You temp sensor is the correct NTC or PTC type ?? (Negative or Pos Temp Coefficient).. It will scale the wrong way if wrong type is connected.


    Mitch
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    What does the MEK do ? guessing it helps with...

    What does the MEK do ? guessing it helps with avoiding knock.
    I know it has a very low flash point.
    I used it in the print industry years ago. Very good for rejuvenating rubber.

    Mitch
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    OL SD = Open Loop Speed Density. Speed Density...

    OL SD = Open Loop Speed Density.
    Speed Density is NO MAF, just the VE Tables
    You're running CL Closed Loop as you are using the CL feedback from the narrow bands.

    IF You are running MAF, I think...
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    Wrong way around Presuming OLSD The VE is...

    Wrong way around

    Presuming OLSD

    The VE is rich so BLM is lower than 128 pulling fuel. The INT has settled hovering around 128 where it's happy.

    If the INT gets to about +-5 the BLM should...
  6. Thanks Steveo. Why would it tend to lean out...

    Thanks Steveo.

    Why would it tend to lean out when the intake temp goes up?

    I'm using all the stock temp settings and have played with them without any consistant results.
  7. Ah OK. Thanks Kur4o, I don't need to persue that...

    Ah OK. Thanks Kur4o, I don't need to persue that avenue then.

    Another question then. OL SD Tune still.
    Have you got any info on Intake Temp compensation.
    I've still got the '95 Z28. I've...
  8. LT1 8051 EE 1240A Mass Air Cylinder Coefficient vs Map vs RPM

    Can anyone confirm what this table does ?

    I guessed it's a scalar for VE calculation? A bigger number calcs more air & adds more fuel per the VE number?

    I increased the low rpm / high kpa and...
  9. Always interested. Glad it worked.

    Always interested.
    Glad it worked.
  10. Only things I've found (I'm in England and have...

    Only things I've found (I'm in England and have an annual emissions test)

    Retard the timing from 34 idle to 20. Helps heat up the O2's and cats.
    Increase the idle to as fast as allowable 800...
  11. don't know off hand. A couple of years old...

    don't know off hand. A couple of years old probably.
  12. TunerPro versions affecting the bin file?

    I have an older version of TunerPro in the car than I have in my office.
    The in car PC has NO networking turned on to stop updates running everytiei switch it on.

    However whilst in the car the...
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    Thanks kur4o I'm pretty sure it was the...

    Thanks kur4o
    I'm pretty sure it was the injectors struggling at a low pw below 1mS
    Car ran fine around 13.5 afr then trim the ve table 1 cell & we were up around 15's afr.
    Idle was OK. It was...
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    I've zeroed it out for now. spark is pretty...

    I've zeroed it out for now. spark is pretty stable and hasn't changed. The surge cycles about 1-2 seconds
    I've tried to slow the iac down some without any success.

    I suspect these injectors...
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    Weird surge idle

    Evening guys.

    I wondered if anyone had any ideas or suggestions.

    I've been playing with my 16188051 LT1 tune and it's developed a wild surging idle. Just about all the data is surging up &...
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    How about a write up on what you've done to...

    How about a write up on what you've done to acheive that.


    Mitch
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    If you are running a return style system like the...

    If you are running a return style system like the LT1 Camaro the return feeds back into the baffled section keeping it full and presumably keeps the pump submerged/cooled in an empty fuel tank.

    ...
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    Many thanks Steveo.

    Many thanks Steveo.
  19. Replies
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    Yeah, that's what i'm doing. If it's running...

    Yeah, that's what i'm doing.

    If it's running stoich on E0 the WB will be showing 14.7
    If i then switch to E10, at stoich the WB will still read 14.7 yes?
    At WOT I'd want to target 12.3 though....
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    LT1 $EE tuning for E10

    Hi guys,
    after losing my post I just typed out, I'll keep this brief.

    What do I need to alter on $EE to go from E0 to E10 fuel.
    Running 95 LT1 383 CL SD No MAF
    My WB reads in AFR and the 12.8...
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    Hmm. I relooked at this recently as it was...

    Hmm. I relooked at this recently as it was discussed on a FB forum. The following may make some sense:-)

    I stuggled to work out which way round to look at the timing calculation, You can calculate...
  22. Don't make your changes the full amount of the...

    Don't make your changes the full amount of the trims. The trims do move around some affecting the averages and you'll overshoot, so make smaller adjustments.

    HTH
    Mitch
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    Not something I've looked at. I don't see why...

    Not something I've looked at.
    I don't see why not.
    Go through all the settings and set the tables to what you need then log data & watch whatever outputs you have selected changing state.

    Keep...
  24. Check the continuity & condition of the cable....

    Check the continuity & condition of the cable. check that it isn't frayed on body work & shorthing out anywhere. (Just because it might check out fine everytime you pull the PCM.
    Mitch
  25. Check the cables aren't rubbing the bodywork...

    Check the cables aren't rubbing the bodywork between sensor & PCM. If it's in a 4th gen F body, it runs up the side of the tunnel in silver foil next to the header. I don't think the diagnostic...
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