ENGINE MECHANICAL PROBLEM1993 LEXUS LS 400 ...

1993 Lexus LS 400

Tiny

kopeye

September, 28, 2010 AT 10:26 AM

Engine Mechanical problem
1993 Lexus LS 400 Automatic 226000 miles

93 ls 400 intially the car was running poor lack of power misfiring. Got code 13 and 41. Needed a water pump and front seal also. Put water pump and seal in and put it back together. It cranks barely and dies. Try to start again and its just turnig over. What could be wrong?

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6 Answers

Tiny

Docfixit

September, 28, 2010 AT 2:57 PM

Suspect timing belt not aligned properly see diagram


http://www.2carpros.com/forum/automotive_pictures/198357_Graphic_627.jpg

have problem with codes been repaired?

Tiny

kopeye

September, 28, 2010 AT 6:35 PM

The marks on 93 ls 400 are different. Line up crankshaft on 0 and the two cams line up at the top. Got code 13 and 41. Put another throttle position sensor on and another crank sensor and got car started but it has no power and dies out on me any ideas

Tiny

kopeye

September, 28, 2010 AT 9:29 PM

Where is the fuel pump and does the fuel tank have to be dropped. Also what is the fuel pressure suppose to be?

Tiny

Docfixit

September, 29, 2010 AT 10:41 AM

Diagram is 4.0L 93 LS 400


http://www.2carpros.com/forum/automotive_pictures/198357_Graphic_630.jpg


Fuel pump can be accessed by removing rear seat and lugage mat. Cover plte to get at pump. Pump 28-34 psi

Tiny

kopeye

September, 29, 2010 AT 4:50 PM

Thanks for the information. Can the spark plug wires be tested with digital multimeter? And what should the wires read?

Tiny

Docfixit

September, 30, 2010 AT 2:37 PM

1000 ohms for each inch is passable

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