1992 es300 running rich - Club Lexus Forums

Log In 

1992 es300 running rich

Reply
 
 
 
Thread Tools Search this Thread
Old 08-09-14, 09:05 PM   #1
shild64289
Driver School Candidate
Thread Starter
 
Join Date: Aug 2014
Location: NC
Posts: 4
Default 1992 es300 running rich

running rich, removed ecu found leaking cap, repaired/replaced ran great for several weeks.
new plugs, rotor, cap & adjusted timing.
started running rich again, replaced ecu, ran great couple weeks. Found #4 plug wet with gas. Cleaned #2, 4, 6 fuel injectors. Ran good for test drive of 20 miles or so. Found all plugs black indicating all cylinders are flooding. Disconnected battery for couple days, once again ran great for 20 mile test drive. When restarted running rich once again.

can anyone help?
shild64289 is offline   Reply With Quote
Old 08-09-14, 11:41 PM   #2
ES300NZ
Lead Lap
 
Join Date: Jul 2014
Location: New Zealand
Posts: 537
Default

just suggestions;

bad MAF or AFM ? (quitelikely)
bad ECU (two wire) watch temp sensor
bad warm up switch, I can't remember the correct name for this sensor, it's basically a on/off water temp switch and it tells the ecu whether the car is warm or not. (extra fuel or not). older engines have this, yours might.
ES300NZ is offline   Reply With Quote
Old 08-11-14, 06:59 AM   #3
shild64289
Driver School Candidate
Thread Starter
 
Join Date: Aug 2014
Location: NC
Posts: 4
Default es 300 running rich

Thanks for your reply but wouldn't MAF problem generate error code and turn on check engine light?
shild64289 is offline   Reply With Quote
Old 08-25-14, 06:38 PM   #4
shild64289
Driver School Candidate
Thread Starter
 
Join Date: Aug 2014
Location: NC
Posts: 4
Default

My 1992 Lexus ES300 intermitten skips like loss of ignition or fuel and check engine light comes on resulting in codes 32, 42, and 43. Clearing codes may run great for 30-40 miles before it does same thing again.

Can I get some help/suggestions on what might be happening?
shild64289 is offline   Reply With Quote
Old 08-25-14, 07:19 PM   #5
ES300NZ
Lead Lap
 
Join Date: Jul 2014
Location: New Zealand
Posts: 537
Default

what about the o2's ? have you thought about replacing those, even with second hand low km's one ?
ES300NZ is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
ls400 erratic idle intermittent missfire very rich dneal92 LS - 1st and 2nd Gen (1990-2000) 2 06-15-16 04:01 AM
Notorious 1j running rich and idle issues. plz help!!!!!!!!!!!!!!!!!!!!! Ollie7354 Performance & Maintenance 7 03-22-16 03:29 AM
Intermittent hard starting briggs33 Performance & Maintenance 3 05-01-15 08:29 AM
94 LS400 runnin rich HELP pumpmikey LS - 1st and 2nd Gen (1990-2000) 14 09-17-14 08:17 AM
Please help before I drive my FI SC400 into a lake and leave it for dead! KC95SC400 Performance & Maintenance 49 03-07-08 09:58 PM


Tags
es300

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -7. The time now is 08:48 PM.


Copyright © 2000-2016 Internet Brands, Inc. All Rights Reserved