94 GS300 Died on Freeway, won't start
08-31-16, 01:13 PM
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94 GS300 Died on Freeway, won't start
Hi all-
My 94 GS300 died on the freeway today, and it won't start.
It is posting the following error codes:
P22 Coolant Temp Circuit Fault
P25 Air Fuel Ratio Fault
P41 Throttle Position Circuit Fault
I removed the timing belt cover, and the belt appears tight and normal, and the marks on the cams appear in sync with each other.
I'm not sure if the crankshaft is turning over, as I haven't been able to look at the engine while someone else tries to start it.
Any ideas on where to start trouble shooting?
My 94 GS300 died on the freeway today, and it won't start.
It is posting the following error codes:
P22 Coolant Temp Circuit Fault
P25 Air Fuel Ratio Fault
P41 Throttle Position Circuit Fault
I removed the timing belt cover, and the belt appears tight and normal, and the marks on the cams appear in sync with each other.
I'm not sure if the crankshaft is turning over, as I haven't been able to look at the engine while someone else tries to start it.
Any ideas on where to start trouble shooting?
11-12-16, 05:43 AM
#3
Lexus Test Driver
65 psi seems a little high. First I would investigate the basics.....fuel, air and spark. After making sure you have all of those I would move on to investigating those codes. Also these cars are known to have ECU problems as they get older so that may be a good place to look as well.
01-21-17, 10:19 AM
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I noticed you asked it the person it a pot hole for something to cause this problem. That is exactly what I did. I hit a small median in an intersection that cause this engine dying. Where should I begin to correct this problem? my user name is Lbaynard and my email is leshawnbaynard2751@gmail.com. Also the anyway I can trick the car to stay running to get it home to my garage to work on?
01-23-17, 09:55 AM
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Checked spark, and fuel pressure.
How do I check for air?
It turns over, but never starts. I took the upper timing belt cover off, and I can see the cams turning when someone tries to start it. The cam timing marks line up with every revolution.
It seems like there is no compression, because when the engine turns over, there is no cyclic reving sound. It turns at constant velocity. There is no "rum rum rum rum" sound, just "raaaaaaaa".
My wife said the engine was smoking when it quit, but she said the temp gauge was not high. There was still coolant and oil in it when I towed it back to my house.
I pulled the engine computer out, and looked at the capacitors. None seemed to be bulging, and there was no sign of corrosion anywhere.
It's still just sitting in front of my house.
How do I check for air?
It turns over, but never starts. I took the upper timing belt cover off, and I can see the cams turning when someone tries to start it. The cam timing marks line up with every revolution.
It seems like there is no compression, because when the engine turns over, there is no cyclic reving sound. It turns at constant velocity. There is no "rum rum rum rum" sound, just "raaaaaaaa".
My wife said the engine was smoking when it quit, but she said the temp gauge was not high. There was still coolant and oil in it when I towed it back to my house.
I pulled the engine computer out, and looked at the capacitors. None seemed to be bulging, and there was no sign of corrosion anywhere.
It's still just sitting in front of my house.
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06-22-17, 02:07 PM
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Hello Lexus people,
my GS300 Ignition was changed and the car stated but missed timing
the engineer didnt get the timing right so i hear a sound (kra) whenever i do a sharp rev but when i do a normal rev (slowly) it doesn't make the noice.
note that I dont have anyone with timing light but i have volt metre.
please what are the side effect and the solution
can it knock my engine if drive to a distance place as it is now
my GS300 Ignition was changed and the car stated but missed timing
the engineer didnt get the timing right so i hear a sound (kra) whenever i do a sharp rev but when i do a normal rev (slowly) it doesn't make the noice.
note that I dont have anyone with timing light but i have volt metre.
please what are the side effect and the solution
can it knock my engine if drive to a distance place as it is now
06-22-17, 02:08 PM
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Hello Lexus people,
my GS300 Ignition was changed and the car stated but missed timing
the engineer didnt get the timing right so i hear a sound (kra) whenever i do a sharp rev but when i do a normal rev (slowly) it doesn't make the noice.
note that I dont have anyone with timing light but i have volt metre.
please what are the side effect and the solution
can it knock my engine if drive to a distance place as it is now
my GS300 Ignition was changed and the car stated but missed timing
the engineer didnt get the timing right so i hear a sound (kra) whenever i do a sharp rev but when i do a normal rev (slowly) it doesn't make the noice.
note that I dont have anyone with timing light but i have volt metre.
please what are the side effect and the solution
can it knock my engine if drive to a distance place as it is now
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