Notices
RX - 1st Gen (1999-2003) Discussion topics related to the 1999 -2003 RX300 models

01 RX300 only starts with code reader

Thread Tools
 
Search this Thread
 
Old Jul 23, 2016 | 03:23 PM
  #1  
08X3's Avatar
08X3
Thread Starter
Driver School Candidate
 
Joined: Dec 2012
Posts: 2
Likes: 0
From: TN
Default 01 RX300 only starts with code reader

I have been having hard starts, now no starts unless my code reader is plugged in. Cranks but no start without code reader, with it in, Ill get is started albeit a tad rough at first then after warm up, runs and idles perfectly. Sometimes check engine light is on with P1760, P1656,P1351 then others no codes at all. I checked all the ground under the hood but I am afraid this is pointing to an ECU. Any ideas on problem or best source for another ECU? Thanks so much!!!
Reply
Old Jul 25, 2016 | 07:08 AM
  #2  
salimshah's Avatar
salimshah
CL Community Team
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2001
Posts: 16,583
Likes: 1,397
From: Austin, TX
Default

Have you had any water damage to the ecu area?

Salim
Reply
Old Jul 26, 2016 | 06:46 PM
  #3  
carguy07's Avatar
carguy07
Lexus Champion
 
Joined: Nov 2005
Posts: 2,110
Likes: 77
From: OH
Default

See if the OP in this thread figured it out: https://www.clublexus.com/forums/rx-...won-t-run.html
Reply
Old Oct 29, 2016 | 07:59 AM
  #4  
Boypony's Avatar
Boypony
Driver School Candidate
 
Joined: Oct 2016
Posts: 26
Likes: 8
From: Kentucky
Default

Bad ground. especially the big one behind upper intake.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jerryparks
LS - 1st and 2nd Gen (1990-2000)
5
Nov 2, 2013 11:53 AM
BigRon239
LS - 1st and 2nd Gen (1990-2000)
7
Mar 19, 2013 11:59 AM
phongX11
IS - 2nd Gen (2006-2013)
4
Apr 5, 2011 04:04 PM
GoldieLex
SC - 1st Gen (1992-2000)
3
Jul 1, 2005 11:22 AM
Derf
SC - 1st Gen (1992-2000)
6
Nov 10, 2004 11:35 AM




All times are GMT -7. The time now is 01:12 PM.

story-0
2026 Lexus IS 350 F Sport Review: The Last of Its Kind Still Rocks

Slideshow: the 2026 IS 350 isn't all that new, and that's why we love it!

By Michael S. Palmer | 2026-06-04 14:35:23


VIEW MORE
story-1
Top 10 Most Confusing Things Lexus Has Ever Done!

Slideshow: 10 most confusing things Lexus has ever done.

By Joe Kucinski | 2026-06-04 09:40:55


VIEW MORE
story-2
2026 Lexus ES Review: Lexus Re-Embraces Founding Principles

Slideshow: Our First-Drive Review of the 2026 Lexus ES!

By Michael S. Palmer | 2026-05-29 20:30:16


VIEW MORE
story-3
10 Lexus Bargains That are Cheaper Than a New Toyota RAV4

Slideshow: 10 Lexus bargain that are cheaper than a new Toyota.

By Joe Kucinski | 2026-05-20 10:28:20


VIEW MORE
story-4
8 Weirdest Things Lexus Has Ever Built

Slideshow: From hoverboards to luxury yachts, these are the strangest projects Lexus has ever attached its badge to.

By Verdad Gallardo | 2026-05-16 11:34:36


VIEW MORE
story-5
10 Lexus Designs That Have Aged Like Fine Wine

Slideshow: Some luxury cars chase trends, but these Lexus models look better now than they did when they first rolled into showrooms.

By Verdad Gallardo | 2026-05-06 17:58:29


VIEW MORE
story-6
8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!

Slideshow: How to Get the Best Fuel Economy with a Hybrid and Plug-In Hybrid!

By Michael S. Palmer | 2026-05-05 20:54:44


VIEW MORE
story-7
10 Best Lexus Models No One Remembers

Slideshow: 10 best Lexus models no one remembers.

By Joe Kucinski | 2026-05-05 17:33:28


VIEW MORE
story-8
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-9
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