Question about 1993 Lexus Ls 400

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Have a 93 LS 400 replace starter and battery. car wont start. gas not getting to the carborator ck fuel pump in trunk with a high voltage can here and see gas gush out up front. want to ck fuel relay but doesn't know where to look help

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Colin Stickland

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Problem with immobilisor call a autolocksmith to reset it for you or the dealer

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Would codes 33 and 54 cause a 93 oldsmobile cutlass supreme not to start


Code 54 is fuel pump circuit, Low voltage,will cause car not to start. Wiring open circuit/short circuit to ground, fuel pump relay, engine oil pressure warning lamp switch
Code 33 is MAP sensor,voltage high, low vacuum indicated.
Wiring short circuit to positive, hose blocked/leaking, MAP sensor, ECM

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93 subaru legacy wont start in cold weather have ck batt changed plugs and gas filter was told it could be coolent temp switch that runs starter fuel pump and tell moter how much gas to give when it does...


run the fault codes
indicates a problem ambient or baro sensor that reports to the ecm so that it knows what fuel setting is required for starting and running the engine
nothing to do with the fuel pump

Sep 24, 2017 | Cars & Trucks

1 Answer

Where is the fuel pump on a 1994 lexus ls 400?


The fuel pump is inside gas tank behind the back seat unscrew the only top that's there and it is inside the gas tank. You will have to remove your back seat to gain access to fuel pump. Fuel tank is located in trunk. No need to take fuel tank down. Click this link for full details and procedures:--- http://technoanswers.blogspot.com/2011/06/how-to-replace-fuel-pump-on-lexus-ls.html ----------- For fuel filter replacing, click this link:--- http://technoanswers.blogspot.com/2011/06/how-to-replace-fuel-filter-1994-lexus.html ----------- For timing belt and water pump removal and installation, click this link below:-- http://technoanswers.blogspot.com/2011/06/how-to-change-timing-belt-and-water.html ------------ For coolant flushing and filling, click the link below:-- http://technoanswers.blogspot.com/2011/06/how-to-drain-and-fill-coolant-on-lexus.html -------------- This all procedures should help.Thanks.Helpmech.

Jun 02, 2011 | 1994 Lexus LS 400

1 Answer

Engine turns over starts when i use starter fluid but wont stay running


IF IT STARTS WITH STARTER FLUID OR EVEN IF YOU WERE TO BUT SOME GAS IN IT MEANS NO FUEL IS GETTING TO INTAKE IT COULD BE A CLOGGED FUEL FILTEROR SOME KIND OF PROBLEM WITH FUEL LINE BUT THE MOST LIKELY THING IS THE FUEL PUMPYOU CAN TRY TAKEING OFF THE FUEL LINE AT THE EASYEST PLACE YOU CAN FIND TURN THE KEYTOSTART FOR 2 OR 3 SECOUNDS SEE IF YOUR GETTING GAS COMEING OUT OF LINE IF NOT YOU NEED TO CHCCK TO SEE IF THERE IS POWER GOING TO THE PUMP CHECK FOR FUEL PUMP RELAYS OR RELAY MOST LIKELY IS THE PUMP IS BAD THERE A WARE PART AND NEED TO BE REPLACED EVERY 10 TO12 YEARS OR SO GOOD LUCK

Oct 18, 2010 | 1990 Lexus LS 400

2 Answers

I have a lexus ls 400 1998, it turns over but will not fire up, there is a good spark, but you get nothing when you try to start it,


check to see if you getting fuel ck fuses for elec fuel pump,ck fuel pressure with tester rented from auto zone or oreilleys,ck injectors with ohm metter unplug injector ck the injector for resistance should be 12 or ubove.utube has a detailed describtion for testing injectors GOOD LUCK

Aug 06, 2010 | 1992 Lexus Ls 400

2 Answers

Troubleshooting car starting problems for a 93 Cadillac Deville


this happen with my 93 ,if the car cranks,it's your gas presser regulator. it's on the top of the engine ,right side of carb.

Dec 28, 2008 | 1993 Cadillac DeVille

1 Answer

Starter wont crank.


Next step is to get under the car and check the connections at the starter.. Do you have a 12 volt test light. If so probe the solenoid wire while someone hold the key in cranking position. If you have voltage there the starter died and needs to be replaced.  Always use jack stands while working under a jacked up car!!!

Dec 11, 2008 | 1996 Lexus LS 400

4 Answers

93 lexus LS 400 how do I replace the fuel pump?


You will have to remove your back seat to gain access to fuel pump. Fuel tank is located in trunk. No need to take fuel tank down.

Dec 07, 2008 | 1993 Lexus Ls 400

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