SOURCE: 1998 Lexus gs 400 vsc light stay on -solve this-
does it go off if u un-plug the switch? if u un-plug it and it goes out I think that you have a bad switch. hit a gunk yard and pull one out for 10$..Matty
SOURCE: 1999 lexus gs 400 speedometer not working
start by checking fuses are there any warning lights on,some of these systems pick up the speed reading from the abs
SOURCE: my 1999 lexus gs 400 is having problems with the accelerator
Your throttle position sensor might be stuck on the wide open throttle setting!
Do you have any check engine codes? Is the check engine light on?
It might not be if the TPS is still in the normal range...but is just sticking open.
SOURCE: codes:p1346/p1349/p1354/p0446/p0300/p0301/p0303/p0305/p0307/ p0430/car runs rough
P0301 Cylinder No. 1 Misfire Detected
P0302 Cylinder No. 2 Misfire Detected
P0303 Cylinder No. 3 Misfire Detected
P0304 Cylinder No. 4 Misfire Detected
P0305 Cylinder No. 5 Misfire Detected
P0306 Cylinder No. 6 Misfire Detected
P1346 Variable Valve Timing (VVT) Circuit Range/Performance Fault
P1349 Variable Valve Timing (VVT) System Malfunction
P0330 Knock Sensor
P0446 EVAP Vent Control Fault
P0430 Catalyst System
Stop driving immediately.....
You defiantly skipped on your timing........
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