.042 is not correct, sorry you have auto-ranging meter and actually shows, .042k (k =1000) so really is 420 ohms Ω, with out the words, ohms or inches, i got "Corn_Fuzed"(sic)
yes 420 is ok! 400 to 500 Ω are all ok.
yes, one can set the THE calibration using volts too, Suzuki never tells that but you can, at the 0 to 5vdc transition point, it is a switch but it's only a comment.
I bet 800 holds now from N to Drive. right:?
cold 800, is wrong for sure, overnight parked cold, other wise its a hot soak not so cold start, coolant temps actually matter here, the IAC is same as the thermostat a wax pellet driven device.
the IAC is open very wide, cold , lets in lots of air, the 8v version opens to .040" gap at 40F (in the refrigerator) temp. -10f opens to 0.060" , your IAC can not be see like the 8v can .
The water temps dictate cold idle RPM , totally. via the actions of IAC (thermal cold idle valve)
0.051 ohms is is 0.051k or 510 ohms autoranged, sorry, your ISC is ok,, most are 500 ohms closed, (carbon landing zone iinside the TPS does that)
a filter FOUND from the maf side to the intake wow, that is an all time first. and crazy... lowers power for he joy of only that, wow.
look ,lets work line 5
line 4, i can't comment on until, water temp is know. my guess water is 30F. and IAC is messed up. but ,we can test it later.
5
" does not surge (hunt) at idle at all.
only way to produce this is to slowly throttle it up to 1900 rpm in park or neutral hot or cold. (great, it does it parked, super more easy to fix.) but forget code as #4 effect above, is messing up cold. )
when 1900 is reached it will drop to 1500 on its own then raise back to 1900, then 1500..
then 1900 over and over never ending as long as i hold my foot very steady on the throttle (very very light throttle input) if i apply more throttle,
rpm raise and smooth out, no more surge, if i let off of throttle, or let it idle, surge stops.
on a hot engine,
that is only caused by a few things,
TPS set wrong and the switch idle pin 2, is not at 5vdc (but is 0v) at 1900 rpm. held by hand or foot. can cause a war of the foot to ISC, (logger heads fight) and surge.
or the MAF is doing that.
the maf does it pass the rap test,, idling hot gently rap or knock it with back side of screwdriver handle? and not change RPM hot idle? or at 1900 rpm? held by hand. rap rap rap. test.?
bad FPR?? fuel pressure is not holding steady at 1900, (the FPR loves to fail now, its really too old, to work very well. does the FPR at vacuum hose leak fuel when the hose removed from FPR)?
yes then it's bad, straight away.
the surges is for sure caused by. (physics)
1: fuel pressures surging at fixed 1900. rpm held by you. (FPR)
2: TPS idle,switch not at 5v (5v means logical 1, and means idle controls are disabled) to the ECU.
3: MAF surges (it can be bad or just dirty) and cause it output to rise and the ecu adds fuel and it surges. (no scan tool to see if closed loop mode fails at 1900 rpm like on 1996 we can..)
5: vacuum leaks (lots possible). and could be a bad iAC, the wax pellet inside bad and it sticks closed or sticks open or goes mad(RANDOM). (see my test below)
6: injector leaks. or partial clogs or sticking.
7: 02 readings not right. (exhaust leaks near by , top list) wow SST headers, sure and very nice. since the factory headers love to crack...
now to prove the IAC failure.
see this photos and pack this port in clay. on hot engine, 150f and up.
the iAC input port in red here, is plugged up some how by you,
if surge is gone, IAC is bad, if not gone other problems as you know !
http://www.fixkick.com/IDLE-AIR/Slide_Sh...ge_24.html
topic
vacuum leaks, in most cases normally there are 2 kinds of leaks,
metered and un-metered air, leaks (vacuum) the latter is MAF seen leaks
if engine ECU is running at STOICH, and un-metered leaks happen rpm drops
if metered leaks happen (like Mr. IAC) then RPM rises.
polar opposite effect (only on hot engine,) cold , all leaks are faster RPM due to engine is in fuel enrich mode cold.
refr, photos of IAC . not easy to test, and removing it the bolts snap (6mm) best test are with TB remove, but we can do it on car.
http://www.fixkick.com/IDLE-AIR/Slide_Sh...IAC_w1.JPG
yes 420 is ok! 400 to 500 Ω are all ok.
yes, one can set the THE calibration using volts too, Suzuki never tells that but you can, at the 0 to 5vdc transition point, it is a switch but it's only a comment.
I bet 800 holds now from N to Drive. right:?
cold 800, is wrong for sure, overnight parked cold, other wise its a hot soak not so cold start, coolant temps actually matter here, the IAC is same as the thermostat a wax pellet driven device.
the IAC is open very wide, cold , lets in lots of air, the 8v version opens to .040" gap at 40F (in the refrigerator) temp. -10f opens to 0.060" , your IAC can not be see like the 8v can .
The water temps dictate cold idle RPM , totally. via the actions of IAC (thermal cold idle valve)
0.051 ohms is is 0.051k or 510 ohms autoranged, sorry, your ISC is ok,, most are 500 ohms closed, (carbon landing zone iinside the TPS does that)
a filter FOUND from the maf side to the intake wow, that is an all time first. and crazy... lowers power for he joy of only that, wow.
look ,lets work line 5
line 4, i can't comment on until, water temp is know. my guess water is 30F. and IAC is messed up. but ,we can test it later.
5
" does not surge (hunt) at idle at all.
only way to produce this is to slowly throttle it up to 1900 rpm in park or neutral hot or cold. (great, it does it parked, super more easy to fix.) but forget code as #4 effect above, is messing up cold. )
when 1900 is reached it will drop to 1500 on its own then raise back to 1900, then 1500..
then 1900 over and over never ending as long as i hold my foot very steady on the throttle (very very light throttle input) if i apply more throttle,
rpm raise and smooth out, no more surge, if i let off of throttle, or let it idle, surge stops.
on a hot engine,
that is only caused by a few things,
TPS set wrong and the switch idle pin 2, is not at 5vdc (but is 0v) at 1900 rpm. held by hand or foot. can cause a war of the foot to ISC, (logger heads fight) and surge.
or the MAF is doing that.
the maf does it pass the rap test,, idling hot gently rap or knock it with back side of screwdriver handle? and not change RPM hot idle? or at 1900 rpm? held by hand. rap rap rap. test.?
bad FPR?? fuel pressure is not holding steady at 1900, (the FPR loves to fail now, its really too old, to work very well. does the FPR at vacuum hose leak fuel when the hose removed from FPR)?
yes then it's bad, straight away.
the surges is for sure caused by. (physics)
1: fuel pressures surging at fixed 1900. rpm held by you. (FPR)
2: TPS idle,switch not at 5v (5v means logical 1, and means idle controls are disabled) to the ECU.
3: MAF surges (it can be bad or just dirty) and cause it output to rise and the ecu adds fuel and it surges. (no scan tool to see if closed loop mode fails at 1900 rpm like on 1996 we can..)
5: vacuum leaks (lots possible). and could be a bad iAC, the wax pellet inside bad and it sticks closed or sticks open or goes mad(RANDOM). (see my test below)
6: injector leaks. or partial clogs or sticking.
7: 02 readings not right. (exhaust leaks near by , top list) wow SST headers, sure and very nice. since the factory headers love to crack...
now to prove the IAC failure.
see this photos and pack this port in clay. on hot engine, 150f and up.
the iAC input port in red here, is plugged up some how by you,
if surge is gone, IAC is bad, if not gone other problems as you know !
http://www.fixkick.com/IDLE-AIR/Slide_Sh...ge_24.html
topic
vacuum leaks, in most cases normally there are 2 kinds of leaks,
metered and un-metered air, leaks (vacuum) the latter is MAF seen leaks
if engine ECU is running at STOICH, and un-metered leaks happen rpm drops
if metered leaks happen (like Mr. IAC) then RPM rises.
polar opposite effect (only on hot engine,) cold , all leaks are faster RPM due to engine is in fuel enrich mode cold.
refr, photos of IAC . not easy to test, and removing it the bolts snap (6mm) best test are with TB remove, but we can do it on car.
http://www.fixkick.com/IDLE-AIR/Slide_Sh...IAC_w1.JPG
http://www.fixkick.com