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2002 lexus ls430 cranks but wont start fuel pump pressure at

Customer Question
tank 45psi and vehicle is...
2002 lexus ls430 cranks but wont start fuel pump pressure at tank 45psi and vehicle is firing
JA: Does the engine turn over? How old is the battery?
Customer: yes turn over battery 3 months old
JA: What is the model of your '02 Lexus?
Customer: ls430
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: check fuel pump and vehicle spark and injector pulse
JA: Anything else you think the mechanic should know?
Customer: no
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Lexus Mechanic about your situation and then connect you two.
Submitted: 1 year ago.Category: Lexus
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Customer reply replied 1 year ago
injectors pulse
Answered in 1 hour by:
6/22/2016
Lexus Mechanic: john -aka eauto, The Car Guy replied 1 year ago
john -aka eauto
john -aka eauto, The Car Guy
Category: Lexus
Satisfied Customers: 16,735
Experience: 15 years as a auto tech Ase Certified
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does it have injector pulse?

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Lexus Mechanic: john -aka eauto, The Car Guy replied 1 year ago

spark? compression?

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Customer reply replied 1 year ago
i have spark just drove from arkansas park car would not start i did not check compression
Customer reply replied 1 year ago
timing belt changed 50000 miles ago
Lexus Mechanic: john -aka eauto, The Car Guy replied 1 year ago

I'm thinking it jumped time or a tensioner failed I would check compression...does it sound normal when its cranking?

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Customer reply replied 1 year ago
sounds normal
Customer reply replied 1 year ago
does the lexus fuel pump prime at key turn
Lexus Mechanic: john -aka eauto, The Car Guy replied 1 year ago

yes

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Customer reply replied 1 year ago
i could not hear the pump when i turned the key but pump is pumping i checked line under the hood
Customer reply replied 1 year ago
i left the shop so i will check compression tomorrow what is next
Lexus Mechanic: john -aka eauto, The Car Guy replied 1 year ago

fire fuel and air...if it has fuel pressure and injector pulse it has to be a timing or compression issue

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Customer reply replied 1 year ago
ok i will check it and let you know will i just type here tomorrow
Lexus Mechanic: john -aka eauto, The Car Guy replied 1 year ago

k

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Customer reply replied 1 year ago
can i text you
Customer reply replied 1 year ago
if not i will type tomorrow
Customer reply replied 1 year ago
i will type tomorrow
Customer reply replied 1 year ago
i will check the compression
Lexus Mechanic: john -aka eauto, The Car Guy replied 1 year ago

great

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Customer reply replied 1 year ago
is there a run module on this vehicle
Lexus Mechanic: john -aka eauto, The Car Guy replied 1 year ago

does it have compression?

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Customer reply replied 1 year ago
164 above compression
Lexus Mechanic: john -aka eauto, The Car Guy replied 1 year ago

so 164 on all cylinders?

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Customer reply replied 1 year ago
Two cylinder at 168
Lexus Mechanic: john -aka eauto, The Car Guy replied 1 year ago

is there anyway that diesel fuel could have gotten in the system somehow because if you have compression spark and injector pulse it should start theoretically.

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Lexus Mechanic: john -aka eauto, The Car Guy replied 1 year ago

did you check all cylinders are they all within 10 %?

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Customer reply replied 1 year ago
looked at fuel receipt premium gas2.79 a gallon
Lexus Mechanic: john -aka eauto, The Car Guy replied 1 year ago

is there any way you can pull the injector rail to see that it is actually pushing fuel and not just pulsating. Also it there any way that fuel could have been contaminated either maliciously(like sugar in your tank) or the fuel you got at the station was bad? you can test for that by getting a fuel sample and either seeing particulates or smelling something

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Customer reply replied 1 year ago
checked pressure at the fuel line coming off the rail to pressure regulator and motor woul lock if sugar contaminated pressure 48 pounds at rail combustion chamber has fuel in it
Lexus Mechanic: john -aka eauto, The Car Guy replied 1 year ago

are the injectors dumping?

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Lexus Mechanic: john -aka eauto, The Car Guy replied 1 year ago

is it over fueling?

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Lexus Mechanic: john -aka eauto, The Car Guy replied 1 year ago

most contaminates wont make it past the injectors so it would be rare to see one lock

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Customer reply replied 1 year ago
Tried everything I think I might have to take it to Lexus ?
Customer reply replied 1 year ago
Not overfueling or contaminated took all fuel out of tank
Lexus Mechanic: john -aka eauto, The Car Guy replied 1 year ago

are the injectors pushing fuel?

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Customer reply replied 1 year ago
What would stop injectors from pushing fuel
Lexus Mechanic: john -aka eauto, The Car Guy replied 1 year ago

being clogged..or lack of pulse

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john -aka eauto
john -aka eauto, The Car Guy
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