fuel pump low/high voltage transition table
#46
#49
Evolving Member
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I've figured that the load location is 420E, but I'm still a bit noob with IDA, so haven't figured out how to find the RPM axis location. I could guess, or assume that the RPM axis locations already defined in my xml for other things are correct, but that's just not right!
#50
Evolved Member
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So I have an Evo 8 here and I always wondered why the car gets stuck in open loop after starting sometimes. Well, I have the rear seat out so I could hear that the fuel pump was at full battery voltage and the AFR was VERY lean in open loop (18-19 AFR).
After a few minutes, the car switched back to low battery voltage at the pump and closed loop operation returned and AFR was back to 14.7 and fuel trims are close to zero.
So I guess the ECT and IAT conditions have something to do with it but it seemed odd that the AFR would be leaner with higher battery voltage but would have perfect fuel trims when closed loop and low battery voltage occured.
Thoughts?
-Jamie
After a few minutes, the car switched back to low battery voltage at the pump and closed loop operation returned and AFR was back to 14.7 and fuel trims are close to zero.
So I guess the ECT and IAT conditions have something to do with it but it seemed odd that the AFR would be leaner with higher battery voltage but would have perfect fuel trims when closed loop and low battery voltage occured.
Thoughts?
-Jamie
#54
Evolved Member
I've figured that the load location is 420E, but I'm still a bit noob with IDA, so haven't figured out how to find the RPM axis location. I could guess, or assume that the RPM axis locations already defined in my xml for other things are correct, but that's just not right!
Well that's something! Most guys in Oz with 8's run 9626 which is why I was after it.
Maybe mrfred or someone can help sort it for us.
#58
Evolved Member
iTrader: (25)
Yea....I noticed haha. Had my trims within 3%, hardwired the pump, now they are like -10-12 lol. Little tweaking here and there getting it back to normal.
How can we get TPS % incorporated into this, or is that possible? Sorry, I know nothing about disassembly or programming
How can we get TPS % incorporated into this, or is that possible? Sorry, I know nothing about disassembly or programming
#59
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Join Date: May 2008
Location: Utah
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bringing this back from the grave, what about for rom ID 88590715 and all the tephra V7 maps?
how come this isn't on there already? do you guys know of a thread compiling all tables not found in V7?
how come this isn't on there already? do you guys know of a thread compiling all tables not found in V7?