92 SC300 CEL and High Idle
10-10-13, 10:11 PM
#1
Driver School Candidate
Thread Starter
Join Date: May 2013
Location: Ca
Posts: 7
Likes: 0
Received 0 Likes
on
0 Posts
92 SC300 CEL and High Idle
Car overheated and had to replace the head and in the process replaced water pump, all belts and hoses, spark plugs, radiator, thermostat. The issue now is the CEL comes on and it idles high, around 1500, when the battery is disconnected or the fuse pulled the computer resets and runs normal but after shutting off and restarting it goes back to CEL and high idle. I have checked for codes but does not give any, I have replaced the ISC and TPS but no improvement, Im very frustrated with it and would appreciate some help with if anyone has come accross this before, also I've had two mechanics look at it and couldn't figure it out because it doesnt give any codes.
10-11-13, 12:30 AM
#2
Moderator
Car overheated and had to replace the head and in the process replaced water pump, all belts and hoses, spark plugs, radiator, thermostat. The issue now is the CEL comes on and it idles high, around 1500, when the battery is disconnected or the fuse pulled the computer resets and runs normal but after shutting off and restarting it goes back to CEL and high idle. I have checked for codes but does not give any, I have replaced the ISC and TPS but no improvement, Im very frustrated with it and would appreciate some help with if anyone has come accross this before, also I've had two mechanics look at it and couldn't figure it out because it doesnt give any codes.
I suggest you to see the
post #414 of one of the LS400 threads All my crazy Lexus issues SOLVED!! (ECU-leaking capacitor) first and then read the post #1 and then #8 to know the detail and why.
You'd also better to read the thread are you guys aware of the need to replace your ECU capacitors?
Last edited by Yamae; 10-11-13 at 12:49 AM.
Thread
Thread Starter
Forum
Replies
Last Post
UZ214
GS - 2nd Gen (1998-2005)
7
08-14-07 08:50 AM