LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Car has no power, I’ve replaced coils and ecu

Thread Tools
 
Search this Thread
 
Old 02-27-19, 12:17 PM
  #1  
leight52
Driver School Candidate
Thread Starter
 
leight52's Avatar
 
Join Date: Feb 2019
Location: ohio
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default Changed alternator, coils and still running bad

Changed alternator, both coils and still running bad and has no power , I just recently deleted the middle mufflers with straight pipes , I kept the cats and it has straight pipes from cats to the back mufflers, could that have messed something up

Last edited by leight52; 02-27-19 at 12:26 PM.
Old 02-27-19, 12:28 PM
  #2  
leight52
Driver School Candidate
Thread Starter
 
leight52's Avatar
 
Join Date: Feb 2019
Location: ohio
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default Car has no power, I’ve replaced coils and ecu

Car has no power, I’ve replaced coils and ecu, help please
Old 02-27-19, 12:59 PM
  #3  
oldskewel
Lexus Test Driver
iTrader: (1)
 
oldskewel's Avatar
 
Join Date: Sep 2010
Location: California
Posts: 1,053
Received 179 Likes on 145 Posts
Default

fuel pump may do that
Old 02-27-19, 04:16 PM
  #4  
timmy0tool
Moderator
iTrader: (7)
 
timmy0tool's Avatar
 
Join Date: Sep 2008
Location: 714/949, SoCal
Posts: 6,927
Received 416 Likes on 371 Posts
Default

any check engine lights? also it will help what type of car you are working with. please include mileage.
Old 02-27-19, 04:35 PM
  #5  
Sin1UZFE
Racer
 
Sin1UZFE's Avatar
 
Join Date: Sep 2018
Location: California
Posts: 1,383
Received 66 Likes on 59 Posts
Default

Originally Posted by leight52
Changed alternator, both coils and still running bad and has no power , I just recently deleted the middle mufflers with straight pipes , I kept the cats and it has straight pipes from cats to the back mufflers, could that have messed something up
Sensors back there still in place? Did it happen right after the muffler deletes? No codes?
Old 02-27-19, 06:10 PM
  #6  
leight52
Driver School Candidate
Thread Starter
 
leight52's Avatar
 
Join Date: Feb 2019
Location: ohio
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default 94 ls 400 with 240,000 miles problems started within a week of muffler delete

94 ls400 problems started within a week of muffler delete
Old 02-27-19, 06:13 PM
  #7  
leight52
Driver School Candidate
Thread Starter
 
leight52's Avatar
 
Join Date: Feb 2019
Location: ohio
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default 94ls400

Check engine light is on when it acts up, very strange, it will run fine then out of nowhere lose power and hard to keep it running
Old 02-28-19, 05:20 AM
  #8  
python
Lexus Champion
iTrader: (4)
 
python's Avatar
 
Join Date: Jan 2008
Location: ca
Posts: 1,840
Received 26 Likes on 24 Posts
Default

retrieve the code(s) my guess is a sensor harness was knocked loose
Old 02-28-19, 06:09 AM
  #9  
jaaa
Lead Lap
 
jaaa's Avatar
 
Join Date: Jul 2015
Location: Colorado
Posts: 707
Received 60 Likes on 53 Posts
Default

Originally Posted by leight52
Car has no power, I’ve replaced coils and ecu, help please
You might try to remove the upstream oxygen sensors and do a test run to see if power has returned. If power returns, you have a clogged cat. If power doesn't return, you don't have a clogged cat. Test drove will be noisy.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
LexusISF11
IS F (2008-2014)
16
11-26-18 05:58 PM
1Timz
IS F (2008-2014)
2
10-19-18 11:37 AM
Thesickest
IS - 3rd Gen (2014-present)
2
04-14-18 02:44 AM
Cestine74
LS - 1st and 2nd Gen (1990-2000)
7
12-07-17 01:23 PM
gildelaat
LS - 1st and 2nd Gen (1990-2000)
1
08-26-08 08:54 PM



Quick Reply: Car has no power, I’ve replaced coils and ecu



All times are GMT -7. The time now is 09:47 AM.