quick TPS Q flood clear. Not so quick anymore now
#1
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quick TPS Q flood clear. Not so quick anymore now
Had to move the car this morning because of some roadwork going on in my street and ofcourse it wouldn't start
Turned over but did not fire. Eventually hooked up the laptop to see it's in Flood Clear mode all the time. TPS ADC count reads 254 for both fully closed and WOT. Managed to change flood clear treshold to 255 and started right up, albeit a bit rough.
Is the 254 ADC count both open and closed a sign of a dying TPS or a pinched/fucked wire somewhere in the harness?
Turned over but did not fire. Eventually hooked up the laptop to see it's in Flood Clear mode all the time. TPS ADC count reads 254 for both fully closed and WOT. Managed to change flood clear treshold to 255 and started right up, albeit a bit rough.
Is the 254 ADC count both open and closed a sign of a dying TPS or a pinched/fucked wire somewhere in the harness?
Last edited by Oscar; 04-08-2010 at 06:03 PM.
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More weirdness. I verified that all the wires at the harness are in good order. Opened up TunerStudio and noticed both CLT and IAT pegged at -40 celsius. Started up MegaTune to check, gives the same readings, both -40. TPS still reads 254 closed or open in both MT and TS. Made sure the thermfactor, matfactor and airdenfactor (which I used with succes in megatune before going to TS) are in the projects inc folder. No dice. No CLT, IAT and TPS readings that make sense.
Any suggestions before setting it on fire?
Any suggestions before setting it on fire?
#6
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Not that I know off. Also noticed that the passenger side window won't go down i.e. does not react to switch. Drivers side is fine. Not sure if related, but if I damaged/removed a grounding point it might be.
I'll go recheck
I'll go recheck
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Cleaned the grounds at the throttle body, redid and cleaned up the IAT wiring. This seems all good. Can't jam the prongs of my DMM in the TPS connector far enough to get a decent reading. What readings should I get from the 4 wires?
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Normally, out of the top my head, pin 31 is IAC2B. Since we don't use a 4-wire stepper IAC, this is used for something else (what?). On one of the 4 pins on the TPS connector, you should get 5V. The VREF is at pin 26, also check if the component F2 (the small disc near the DB-37) is in place and if you get 5V on pin 26.
Jim
Jim
Last edited by Reverant; 04-09-2010 at 05:29 AM.
#15
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managed to put the pin back into the connector far enough apparanty. Car runs ok-ish, idles at ~2k rpm. Used to be 1200-1400rpm. Still need to figure out the sensor and TPS issue though. I'm sick of this
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