01-18-2021, 08:28 PM
(01-18-2021, 01:20 PM)1995 toad Wrote: Sorry... its flashing 22 the low voltage one... ive tried clearing it and it keeps coming back... pretty sure the components on this car are all stock as i bought it from the original owner. other than wear items that i have replaced a few times... the egr is replaced by a resistor. the rig has run fine until this issue with the timing bouncing around....I didnt know what it was until the recent revelation. has been doing it intermittently for awhile. would the tps low secondary voltage cause that issue... it never through all the times it did this showed this code.22 DTC error code, "diagnostic trouble code" (it is true that it can come and go in 1 second) that is why we look , constantly.(when there is trouble)
and when it does fail even for 1 second the ECU goes to limphome mode and RETARDED timing is the effect (spark) this is normal for any DTC mostly.
this error is a catastrophic error code. (means must be cured first !) on all cars made, EFI.
Quote:TPS Throttle Position Sensor Circuit is too low V , TP pin, not idle.
this means the TP pin wire, is dropping to 0volts. (too low is that)
it means ONE OF , 3 things,
- the +5vdc pin is falling to zero volts at pin 4 , or pin 4 wire is broken. (I do not think it is ECU bad or other sensors would fail) this is a power pin !
- the TP pin wire is broken., at pin 3. (or its pin socket damaged)
- or the TPS is bad. (EOL< end of life)
All the ECU knows it the voltage on pin 3 fails and goes to zero. (1v to 3.5v is normal range. idle to WOT) 0v and 5v are wrong.
TP is also throttle angle ! (the new modern name)
if wires look ok, most times the TPS is bad.
most times the TPS has dead spots. seen here. (from endless wear from decades of use)
https://fixkick.com/EFI-1.html#TPS
http://www.fixkick.com