94 LS 400

Asked by asphaltman101 Sep 24, 2015 at 01:26 AM about the 1994 Lexus LS

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
95

RichardParsons answered 8 years ago

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.

Mark helpful

asphaltman101 answered 8 years ago

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

Mark helpful

Your Answer:

Related Questions

  • 94 LS 400 3 Answers

    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 fo...

    1994 Lexus LS

    -

    Maintenance & Repair

  • Lexus 400 ls automatic transmission problems 1 Answer

    1996 Lexus ls 400 stop shifting into high gear all the other Gears work fine, just won't go into drive

    1996 Lexus LS

    -

    Maintenance & Repair

  • Does the 1991 Lexus LS 400 have a sister hard 1 Answer

    1991 Lexus LS 400 does it have a sister car need to know what is interchangeable with that car

    1991 Lexus LS

    -

    Maintenance & Repair

  • 1996 LS 400 - power steering rack replacement part 2 Answers

    I am in the search for a power steering rack replacement part for my 1996 LS 400. I have been surfing the internet for this for a long time. The "Lexus" original parts cost close to $2,000. That is mo...

    1996 Lexus LS 400 RWD

    -

    Maintenance & Repair

  • turn on my headlight on my 92 ls 400 and the tranny stops working!! what the ?? 2 Answers

    i just bought a 1992 lexus ls 400 runs great until i tried to drive it home at night i turn the headlight on and whammo no trans turn em off and i have a transmission! i am slightly confused and upset...

    1992 Lexus LS 400 RWD

    -

    Maintenance & Repair

LS

Looking for a Used LS in your area?

CarGurus has 30 nationwide LS listings starting at $5,995.

Postal Code:

Shortcuts

Search Lexus LS Questions

CarGurus Experts

  • #1
    HenryProctor56
    Reputation
    530
  • #1
    Paul
    Reputation
    530
  • #3
    dandyoun
    Reputation
    480
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Lexus GS
3 Great Deals out of 25 listings starting at $9,999
Used Lexus ES
18 Great Deals out of 220 listings starting at $5,900
Used Mercedes-Benz S-Class
16 Great Deals out of 212 listings starting at $6,500
Used BMW 7 Series
12 Great Deals out of 131 listings starting at $6,995
Used Toyota Avalon
6 Great Deals out of 40 listings starting at $6,995
Used Honda Accord
51 Great Deals out of 978 listings starting at $2,995
Used Mercedes-Benz E-Class
38 Great Deals out of 556 listings starting at $5,450
Used Toyota Camry
44 Great Deals out of 1,139 listings starting at $2,500
Used BMW 5 Series
24 Great Deals out of 301 listings starting at $5,299

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. Content will be removed if CarGurus becomes aware that it violates our policies.