Performance & Maintenance Engine, forced induction, intakes, exhausts, torque converters, transmissions, etc.

Rough idle

Thread Tools
 
Search this Thread
 
Old 04-23-12, 03:15 AM
  #1  
dtLS400
Driver
Thread Starter
iTrader: (1)
 
dtLS400's Avatar
 
Join Date: Jul 2011
Location: CA
Posts: 149
Likes: 0
Received 0 Likes on 0 Posts
Default Rough idle

My 92 sc300 5 speed has drained my battery and idles rough after I removed the interior carpet, seats, and. Center console. I plugged all the connectors as they were and I was able to start and drive the car after I put her back together, but when I tried to start her up the next day she would not start. Got a new battery and the car starts up but It has a hard time idling...
Old 04-23-12, 04:13 PM
  #2  
GS4_Fiend
Lexus Test Driver
iTrader: (22)
 
GS4_Fiend's Avatar
 
Join Date: Aug 2008
Location: CA
Posts: 7,014
Received 86 Likes on 69 Posts
Default

Check for vacuum leaks
Old 04-30-12, 03:20 AM
  #3  
dtLS400
Driver
Thread Starter
iTrader: (1)
 
dtLS400's Avatar
 
Join Date: Jul 2011
Location: CA
Posts: 149
Likes: 0
Received 0 Likes on 0 Posts
Default

I don't seem to see any vacuum leaks. My battery discharge light has come on the dash After I had the carpet out. The previous owner had
A
Few
Wires
Running into the trunk with nothing connected to it so I took those out, I also notice that my car does
Not have the stock amp if any, the previous owner installed
An aftermarket sound system and removed
Prior to sale with wiring still
There. My mechanic told me my alternator was not recharging battery. I'm going to check the fuses in theorning after I charge my battery a bit.
Old 04-30-12, 09:53 AM
  #4  
GS4_Fiend
Lexus Test Driver
iTrader: (22)
 
GS4_Fiend's Avatar
 
Join Date: Aug 2008
Location: CA
Posts: 7,014
Received 86 Likes on 69 Posts
Default

Bad charging system will indeed cause alot of problem. Also make sure ur battery can pass a load test or else that battery is NFG
Old 05-07-12, 09:46 AM
  #5  
dtLS400
Driver
Thread Starter
iTrader: (1)
 
dtLS400's Avatar
 
Join Date: Jul 2011
Location: CA
Posts: 149
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks for all the help guys. I found a frayed wire when I took my alternator off. One of the connector wires Into the alt was bad, saudered it up and taped it off problem is gone.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Booyah
GX - 1st Gen (2004-2009)
7
06-25-22 03:09 PM
rcolosi
Performance & Maintenance
3
11-12-17 09:47 PM
defrag010
Performance & Maintenance
31
05-04-09 08:54 PM
enycetony
Performance & Maintenance
15
12-12-07 07:59 PM
dkny_112
SC- 1st Gen (1992-2000)
3
09-12-04 11:34 AM



Quick Reply: Rough idle



All times are GMT -7. The time now is 03:33 AM.