ClubLexus - Lexus Forum Discussion

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

No spark

Thread Tools
 
Search this Thread
 
Old Jun 19, 2010 | 09:08 AM
Share
  #1  
maxgee's Avatar
maxgee
Thread Starter
Driver
 
Joined: Jul 2003
Posts: 162
Likes: 0
From: Florida
Default No spark
Car sat for a few days, go to start it and it just turns.
I checked the return line and fuel is there, pulled plug on right and left sides and no spark. Took the coil to Advance to be checked and it's working.
What else can I check?
Reply
0
Old Jun 19, 2010 | 02:03 PM
Share
  #2  
PureDrifter's Avatar
PureDrifter
BahHumBug
CL Folding 100,000
20 Year Member
Photogenic
Liked
iTrader: (10)
 
Joined: Aug 2004
Posts: 23,920
Likes: 114
From: California
Default
no year = no help!
Reply
0
Old Jun 19, 2010 | 03:16 PM
Share
  #3  
maxgee's Avatar
maxgee
Thread Starter
Driver
 
Joined: Jul 2003
Posts: 162
Likes: 0
From: Florida
Default
1995 LS400 with 240k miles
Reply
0
Old Jun 21, 2010 | 04:00 AM
Share
  #4  
maxgee's Avatar
maxgee
Thread Starter
Driver
 
Joined: Jul 2003
Posts: 162
Likes: 0
From: Florida
Default
1995 LS400, no mods, completely stock with 240k miles.

update:
1. connected a scan tool, but no link successful.
2. swapped EFI and Main Engine relays around with other/no change in condition.

Any ideas?
Reply
0
Old Jun 21, 2010 | 04:50 AM
Share
  #5  
PureDrifter's Avatar
PureDrifter
BahHumBug
CL Folding 100,000
20 Year Member
Photogenic
Liked
iTrader: (10)
 
Joined: Aug 2004
Posts: 23,920
Likes: 114
From: California
Default
confirm that the ECU is getting +12v. if it is, then the ecu died. needs replacement/refurb.
Reply
0
Old Jun 21, 2010 | 05:18 PM
Share
  #6  
maxgee's Avatar
maxgee
Thread Starter
Driver
 
Joined: Jul 2003
Posts: 162
Likes: 0
From: Florida
Default
Originally Posted by PureDrifter
confirm that the ECU is getting +12v. if it is, then the ecu died. needs replacement/refurb.
I'm trying to find the site that has the wiring diagram, but unable to gain access.

Do you know which plug/pin is the power wire for the ECU?
Reply
0
Old Jun 22, 2010 | 11:27 AM
Share
  #7  
nthach's Avatar
nthach
Lexus Champion
 
Joined: Oct 2003
Posts: 3,350
Likes: 6
From: California
Default
Jumper terminals TE1 and E1 in the diagnostics connector in the engine bay or the circular one in the driver's footwell. If the CEL blinks, you got power. The fuel injectors shouldn't trigger if the ECU isn't grounding the relay for the injector ballast.

The 1995 cars are pre OBD-II compliant but the scan tool support can be iffy.
Reply
0

Trending Topics

Old Jun 23, 2010 | 06:47 PM
Share
  #8  
maxgee's Avatar
maxgee
Thread Starter
Driver
 
Joined: Jul 2003
Posts: 162
Likes: 0
From: Florida
Default
I Jumped the diag under the hood te1 and e1 turned the key
to on and no blink of cel just stays on.
Computer no good I guess?
Reply
0
ClubLexus Stories

Celebrating Lexus & Toyota from Around the Globe

story-0

TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

 Michael S. Palmer
story-1

Top 10 Lexus & Toyotas to Drive Before You Die!

 Joe Kucinski
story-2

Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

 Joe Kucinski
story-3

Lexus LC500 Convertible Auction: A Preview of Rising Values?

 Brett Foote
story-4

GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

 Michael S. Palmer
story-5

9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

 Joe Kucinski
story-6

2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

 Brett Foote
story-7

Top 10 Reasons to Buy a Lexus TX 550h+ (& 3 Reasons to AVOID!)

 Michael S. Palmer
story-8

Top 10 Lexus & Toyota Models of the 1990s RANKED!

 Joe Kucinski
story-9

10 Great Toyotas That Could Have Been Lexus Models

 Joe Kucinski
Old Jun 26, 2010 | 07:51 AM
Share
  #9  
maxgee's Avatar
maxgee
Thread Starter
Driver
 
Joined: Jul 2003
Posts: 162
Likes: 0
From: Florida
Default
Found a computer from a 96, will this work with a 95?
Reply
0
Old Jul 12, 2010 | 05:10 PM
Share
  #10  
maxgee's Avatar
maxgee
Thread Starter
Driver
 
Joined: Jul 2003
Posts: 162
Likes: 0
From: Florida
Default
update
ecu was fried
got one from a 96, started right up.
Reply
0
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
HELP 91 LS400 Suddenly died
ojahsan
LS - 1st and 2nd Gen (1990-2000)
13
Jun 21, 2015 09:52 PM
Bad ECU confirmation
UNDR8D
LS - 1st and 2nd Gen (1990-2000)
21
Sep 26, 2012 04:57 PM
Slight miss then went to running VERY rough
ImWildBill
LS - 1st and 2nd Gen (1990-2000)
22
Oct 7, 2011 08:18 AM
two dead cylinders need help!
BlueLS
LS - 1st and 2nd Gen (1990-2000)
5
Jul 11, 2011 09:11 PM
No spark, No fuel, No run
RAINBOW
LS - 1st and 2nd Gen (1990-2000)
22
Sep 21, 2010 07:57 AM
Tags
Back to Subforum
LS - 1st and 2nd Gen (1990-2000)
View Next Unread
Has anyone had to use their First Aid Kit. I Just Did




Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -7. The time now is 08:20 PM.

story-0
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

Slideshow: diving into 4Runner TRD Off-Road Premium's pricing, performance, fuel economy, features, and amenities!

By Michael S. Palmer | 2026-04-23 13:09:18


VIEW MORE
story-1
Top 10 Lexus & Toyotas to Drive Before You Die!

Slideshow: the 10 Lexus and Toyota vehicles you need to drive before you die.

By Joe Kucinski | 2026-04-23 10:34:24


VIEW MORE
story-2
Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

Slideshow: Top 10 Lexus/Toyota models with the lowest 5-year depreciation rate.

By Joe Kucinski | 2026-04-08 12:19:06


VIEW MORE
story-3
Lexus LC500 Convertible Auction: A Preview of Rising Values?

The LC hasn't even disappeared from the Lexus lineup yet, and we're already seeing signs of an explosive market.

By Brett Foote | 2026-04-06 09:25:02


VIEW MORE
story-4
GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

Slideshow: comparing the pricings, specs, power, fuel economy, fun-factor, and features of the GX 550 Luxury+ and TX 550h+ Luxury.

By Michael S. Palmer | 2026-03-19 13:44:11


VIEW MORE
story-5
9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

Slideshow: 9 best Lexus models you can buy for half price and 1 you should avoid

By Joe Kucinski | 2026-03-19 12:01:07


VIEW MORE
story-6
2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

Here's everything you need to know about the latest NX.

By Brett Foote | 2026-03-19 11:56:59


VIEW MORE
story-7
Top 10 Reasons to Buy a Lexus TX 550h+ (& 3 Reasons to AVOID!)

Slideshow: reviewing the 2026 Lexus TX 550h+ Luxury plug-in hybrid crossover SUV!

By Michael S. Palmer | 2026-03-05 19:04:47


VIEW MORE
story-8
Top 10 Lexus & Toyota Models of the 1990s RANKED!

Slideshow: Top 10 Lexus and Toyota model of the 1990s ranked.

By Joe Kucinski | 2026-03-04 12:35:11


VIEW MORE
story-9
10 Great Toyotas That Could Have Been Lexus Models

Slideshow: 10 Toyotas that could have been Lexus models.

By Joe Kucinski | 2026-02-19 11:44:33


VIEW MORE