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Lexus LS 400 Starting/Running Problems!!!!!

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Old 08-06-12, 07:24 AM   #1
knollek
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Default Lexus LS 400 Starting/Running Problems!!!!!

Hello All!!!

I have a 1994 Lexus LS 400 with 165k on for miles. just recently I have encountered problems with the car. It will not start at all. It was running fine last week and then just died on me while driving. now you go to crank it over, and nothing. The car cranks just fine but will not start. I know there is plenty of fuel in it so that is not an issue. I had it taken to a local shop were they replaced to sensors and did everything they could and check out on the car and came up with these two sensors that were bad. They were replaced and they must have had to start it to get the car out of the garage and into the lot. I went to pick it up couple days later and again it cranks just fine but will not start again.

any ideas/thoughts/hints/ anything would be greatly needed and appreciated

THANKS!!!
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Old 08-06-12, 08:27 AM   #2
Lavrishevo
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Are you getting spark? Any engine codes? You need to narrow it down step by step. Fuel, spark, etc. Sounds like the shop is not that competent if they are replacing sensors and she won't even start.

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Old 08-06-12, 10:47 AM   #3
knollek
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the engine has spark at all cylinders, there are no codes being thrown, fuel pressure is at normal, there is no vacuum lock for fuel, etc. This is a very weird problem that I have never heard of before. Like I have stated, the car just died while driving it, had it towed to a service shop. The shop replaced two sensors, must have thought it was fixed because it started to remove it from the service bay into the parking lot. Went to go pick it up and cranks all day long but will not start.
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Old 08-06-12, 11:06 AM   #4
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Battery issue. Did the shop run all those test or you? If all thats true than has to be a simple fix.
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Old 08-06-12, 11:32 AM   #5
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If it is a battery issue, wouldn't it not be cranking?
Did anyone mention the fuel pump?
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Old 08-06-12, 12:12 PM   #6
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Anyone do a compression test?
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Old 08-06-12, 12:16 PM   #7
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no spark on either bank? or just one?

check uses, it's almost like the ECU isn't getting power.

is the CEL lighting up when you turn the key to "ON" before starting it?
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