05-08-2019, 02:34 AM
that is so funny, you complain the MAF failsafe simulator works too good, WOW !
(too bad the air plane that ran off the runway few days back did not have backup reverse thruster, or better a LIMPHOME reverse thrust-er (fully joking but not the crash just the analogy) (the log books said do not use engine reverse thrusters and expect huge longer stopping distances and matching long run ways, oops..... ,)
my mpg is 26mph and up to 28.,...
if 15mpg is normal (unstated by you)]
then limhome at 15mgh would match that. right?. so the actUAL MPG has meaning for sure. I bet you dont get 28mpg no MAF, all call you on that, LOLl
have friend with G16 sidekick (unlicensed) and runs maf free pulling tree stumps. 15mpg is AOK here. sure. 1 tank a year? less.?
so run MAF free, it is your car and your cash. (for parts or gas)
so you ran 300 miles with 10 gallons of fuel with no maf plugged in, if yes, you need to put this car in the Guinness records.
Trying to make sense of limphome , is really too hard. why try,? its all emulation simulation of dead sensors. that is what it does, it does its best to get you home.
a refurb MAF is $400, and new at over $1200 from Suzuki.com (i bet you didnt pop for that, am I right?)
the ones on fleabay are either good or trash, there is no way to know before what china knockoff MAF works , no way in hell. (IT IS CALIBRATED SENSOR NOT A TOY)
i say drive, it , no State smog man , drive it like you stole it they say;.
PS : i think your mafs are bad, if all else is ok, it is.
the ECU does not know a weak maf ever. (READ THAT 2 TIMES)
only dead mafs set the DTC error for dead maf. (dead output near 0v or stuck at 5vdc)
the maf is chicken and the egg device. (WHICH CAME FIRST?)
if the maf is weak , the engine will have very low power, but if the engine is weak the maf will read weak see how that works, tricky no?
GAME#1:
lets say youR cam belt slipped, anD now the engine is weak (cam timing retarded)
and you test the maf with a voltmeter and it will read weak but is 100%^ GOOD. (SEE THAT, YOU CAN NOT TEST A MAF WITH A WEAK ENGINE BUT.
BUT MY MAF PAGE I TESTED MINE WITH VACUUM CLEANER, A LEAF BLOWER WOULD BE BETTER.) GOT 3VDC OUT, not bad for shop vac.
the maf is very tricky indeed. in this way.
lets play game #2
lets say fuel pressure is very low, but not too low to end idle RPM .
then you measure the maf it will will read low after all fuel pressure is say 20psi not 36. (for full power 36psi is minimum) at sea level with 14psi atomospheric pressure 43 is needed)
WOT is max fuel pressure and at sealevel. even more pressure fuel. the FPR does this MAGIC unseen... (and KEYON only pressure is max max at sealevel)
the maf is 100% good,
then you remove the maf, then the MAF simulator goes on line (pure software/firmware) and goes super rich, as all do this way.
It goes rich for 3 reasons, On purpose, to not burn up exhuast valves (LEAN) and to not make NOX smog, or cause deadly Ping (detonation damage)
then with the SIMULATOR running (IT IS) the fuel pressure works seems OK now and engine wakes up.. due to limp OVER-INJECTION rates the SImulator uses. see?
also know this if the fuel pressure is low say 25psi then limhome hides this fact, from super lean AFR to more normal and not too rich see why?
see that balancing act, and the funny rule of MAF, 2 wrongs making right here? Classic, this is.
the silly simulator has no air flow data at all ! NO DIRECT WAY TO GAIN THAT DATA PERIOD and is KEY here.
nor is there a fuel pressure sensor on this car, at all. (like new cars have)
it uses INDirect or crude inputs:
only it has TPS throttle angles and RPM.) it does crude air flow CALC's based on this poor set of inputs, and GETS YOU HOME,.that is it's only purpose this. (this is not confusing, at all)
Your car has no MAP sensor (96 has EGR MAP but is not a real MAP)
so computing Air flows are super hard lacking a good MAF. (removed map)
the 2 wrongs are
fuel pressure low, maf missing (unplugged) and in limphome,
these 2 wrongs make and almost right, (Correct)
see why?
if not just know that it hides mostly that low fuel pressure.
what you did to the maf.
(too bad the air plane that ran off the runway few days back did not have backup reverse thruster, or better a LIMPHOME reverse thrust-er (fully joking but not the crash just the analogy) (the log books said do not use engine reverse thrusters and expect huge longer stopping distances and matching long run ways, oops..... ,)
my mpg is 26mph and up to 28.,...
if 15mpg is normal (unstated by you)]
then limhome at 15mgh would match that. right?. so the actUAL MPG has meaning for sure. I bet you dont get 28mpg no MAF, all call you on that, LOLl
have friend with G16 sidekick (unlicensed) and runs maf free pulling tree stumps. 15mpg is AOK here. sure. 1 tank a year? less.?
so run MAF free, it is your car and your cash. (for parts or gas)
so you ran 300 miles with 10 gallons of fuel with no maf plugged in, if yes, you need to put this car in the Guinness records.
Trying to make sense of limphome , is really too hard. why try,? its all emulation simulation of dead sensors. that is what it does, it does its best to get you home.
a refurb MAF is $400, and new at over $1200 from Suzuki.com (i bet you didnt pop for that, am I right?)
the ones on fleabay are either good or trash, there is no way to know before what china knockoff MAF works , no way in hell. (IT IS CALIBRATED SENSOR NOT A TOY)
i say drive, it , no State smog man , drive it like you stole it they say;.
PS : i think your mafs are bad, if all else is ok, it is.
the ECU does not know a weak maf ever. (READ THAT 2 TIMES)
only dead mafs set the DTC error for dead maf. (dead output near 0v or stuck at 5vdc)
the maf is chicken and the egg device. (WHICH CAME FIRST?)
if the maf is weak , the engine will have very low power, but if the engine is weak the maf will read weak see how that works, tricky no?
GAME#1:
lets say youR cam belt slipped, anD now the engine is weak (cam timing retarded)
and you test the maf with a voltmeter and it will read weak but is 100%^ GOOD. (SEE THAT, YOU CAN NOT TEST A MAF WITH A WEAK ENGINE BUT.
BUT MY MAF PAGE I TESTED MINE WITH VACUUM CLEANER, A LEAF BLOWER WOULD BE BETTER.) GOT 3VDC OUT, not bad for shop vac.
the maf is very tricky indeed. in this way.
lets play game #2
lets say fuel pressure is very low, but not too low to end idle RPM .
then you measure the maf it will will read low after all fuel pressure is say 20psi not 36. (for full power 36psi is minimum) at sea level with 14psi atomospheric pressure 43 is needed)
WOT is max fuel pressure and at sealevel. even more pressure fuel. the FPR does this MAGIC unseen... (and KEYON only pressure is max max at sealevel)
the maf is 100% good,
then you remove the maf, then the MAF simulator goes on line (pure software/firmware) and goes super rich, as all do this way.
It goes rich for 3 reasons, On purpose, to not burn up exhuast valves (LEAN) and to not make NOX smog, or cause deadly Ping (detonation damage)
then with the SIMULATOR running (IT IS) the fuel pressure works seems OK now and engine wakes up.. due to limp OVER-INJECTION rates the SImulator uses. see?
also know this if the fuel pressure is low say 25psi then limhome hides this fact, from super lean AFR to more normal and not too rich see why?
see that balancing act, and the funny rule of MAF, 2 wrongs making right here? Classic, this is.
the silly simulator has no air flow data at all ! NO DIRECT WAY TO GAIN THAT DATA PERIOD and is KEY here.
nor is there a fuel pressure sensor on this car, at all. (like new cars have)
it uses INDirect or crude inputs:
only it has TPS throttle angles and RPM.) it does crude air flow CALC's based on this poor set of inputs, and GETS YOU HOME,.that is it's only purpose this. (this is not confusing, at all)
Your car has no MAP sensor (96 has EGR MAP but is not a real MAP)
so computing Air flows are super hard lacking a good MAF. (removed map)
the 2 wrongs are
fuel pressure low, maf missing (unplugged) and in limphome,
these 2 wrongs make and almost right, (Correct)
see why?
if not just know that it hides mostly that low fuel pressure.
what you did to the maf.
http://www.fixkick.com