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car starts then shuts right off

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Old 05-13-10, 10:49 AM
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Unique1
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Default car starts then shuts right off
Sorry for the noob questions but i need this car running asap.....

Well i just bought the car. It has 160k miles. The previous owner told me that it did this before and he changed the spark plugs and it started right up and worked fine but then 3 months after that it started doing the same thing again.... Anyone know what could be causing this?
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Old 05-13-10, 11:21 AM
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AFM maybe...
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Old 05-13-10, 11:35 AM
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Originally Posted by LiCelsior
AFM maybe...

Whats AFM? You mean MAF? No its not that was checked.
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Old 05-13-10, 11:43 AM
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It runs off the cold start injector but then has no fuel from the primaries to keep it running?
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Old 05-13-10, 11:53 AM
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Originally Posted by Kingsoup
It runs off the cold start injector but then has no fuel from the primaries to keep it running?
But one time the car stayed running for like 10 seconds so dont think its that?
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Old 05-13-10, 12:05 PM
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technically its the air flow meter. but get that checked out!
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Old 05-13-10, 01:17 PM
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no he meant AFM. 89-94 LS400s have honeycomb style air flow meters, later models come with hot wire MAFs.
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Old 05-13-10, 01:36 PM
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Originally Posted by LiCelsior
technically its the air flow meter. but get that checked out!

Ill check that out. I hope it doesnt get expensive to fix
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Old 05-13-10, 01:37 PM
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Originally Posted by PureDrifter
no he meant AFM. 89-94 LS400s have honeycomb style air flow meters, later models come with hot wire MAFs.
How do you check those?
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Old 05-13-10, 01:38 PM
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i sold one for $50 bucks, but i tend to price it lower...regular price probably around 70-100bucks or so.

see if anyone in NV has a ls/sc400 and see if they can lend u their AFM so u can put it on ur car to see if it runs any better.
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Old 05-13-10, 01:44 PM
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Originally Posted by LiCelsior
i sold one for $50 bucks, but i tend to price it lower...regular price probably around 70-100bucks or so.

see if anyone in NV has a ls/sc400 and see if they can lend u their AFM so u can put it on ur car to see if it runs any better.
not bad... Im taking it to my uncles shop tomorrow to get the error code.... I only got the car for 400 bucks so i shouldnt complain lol
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Old 05-14-10, 09:03 PM
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Well it was the fuel pump......
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Old 05-15-10, 02:04 AM
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that wasnt bad. i got one for sale if u need.
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Old 05-15-10, 12:02 PM
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Originally Posted by LiCelsior
that wasnt bad. i got one for sale if u need.


Thanks bro, but I need it asap.... I'm getting it Monday.... ill take some pics of the car soon..... now I need new front seats cause there leather and are really beat up.......
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Old 05-18-10, 11:46 AM
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car is running. Power steering pump is dead and the brake pedal has to be pushed all the way to the floor to stop
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