94 LS 400

Asked by Sep 24, 2015 at 01:26 AM about the 1994 Lexus LS 400

Question type: Maintenance & Repair

Driving my 94 LS 400 on fwy just start bogging out and dead. Before that
no problems , so i pulled over years ago my friend told me to disconnect
battery cable and reconnected. it started and ran for mile and car turned
off. did it one more time and work again for about mile and stop running.
tried to do the battery thing again. but never ran again.It cranks over but
wont start. Need suggestion to find problems asap. Thank u

3 Answers

15

Check the fuel pump ecu in the trunk. It likes to become disconnected. You can actually force the fuel pump on through the diagnostic box. Then try from there.

thank u

by passed the fuel pump relay with hot wire from battery to diagnostic FP and Bt. car starts fine. when i release foot off gas it dies. i change fuel pump relay and main EFI under hood. car starts run on its own. i press on gas to biuld up rpm and its starts booging out. please help thank u

Your Answer

Add photo

Related Questions

LS 400

Looking for a Used LS 400 in your area?

CarGurus has 209 nationwide LS 400 listings and the tools to find you a great deal.

ZIP:

Search Lexus LS 400 Questions

Lexus LS 400 Experts

#1 Tom Demyan
Tom Demyan
Reputation 470
#2 dandyoun
dandyoun
Reputation 220
#3 Sam Lee
Sam Lee
Reputation 180
View All

Related Models For Sale

Used Lexus GS 300
28 Great Deals out of 758 listings starting at $2,700
Used BMW 7 Series
165 Great Deals out of 5,956 listings starting at $2,999
Used Lexus ES 300
11 Great Deals out of 900 listings starting at $1,495
Used Mercedes-Benz E-Class
359 Great Deals out of 19,354 listings starting at $1,500
Used Toyota Camry
1,104 Great Deals out of 90,757 listings starting at $1,599
Used Mercedes-Benz S-Class
141 Great Deals out of 6,604 listings starting at $2,990
Used BMW 5 Series
469 Great Deals out of 15,437 listings starting at $500
Used Honda Accord
946 Great Deals out of 77,735 listings starting at $899
Used BMW 3 Series
943 Great Deals out of 30,262 listings starting at $1,000
Used Lexus SC 400
71 listings

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.