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Old 07-24-2013, 11:50 PM   #1
wiggley
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2002 SL1
Default 02' SL1 Stalling Problem. Fuel ? A Sensor ?

For awhile, my SL1 would stall if my tank went below 1/2 tank. Now it has gotten worse. It now stalls out when my tank goes below 3/4. I had it in the shop and they thought it was something in the bottom of the fuel tank. I wasn't sure that was it...and didn't want to pay $800 to have my fuel tank replaced. So, I just had them replace my fuel filter. More on the problem, when it stalls, after a waiting about a minute I can start it again and it will drive about 100 feet, slowly and not with much power, but it will go. I can do this several times and get to a gas station. After I fill the tank back up, no problems. I searched about stalling issues here on the forum and people say that it could be the crankshaft position sensor. I haven't had the chance to replace mine yet, to see if that fixes it. Anybody heard of behavior like this before ?

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Old 07-25-2013, 01:36 AM   #2
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Default Re: 02' SL1 Stalling Problem. Fuel ? A Sensor ?

Before throwing parts at the car without some troubleshooting, it can be expensive. You already turned down an $800 tank repair that wasn't needed. A crank sensor may be failing but some simple tests can rule it out; checking for spark the moment the car dies - if you check for spark when someone cranks the engine, the crank sensor is fine. Something else is causing the erratic engine die off.

Mileage, maintenance, parts replaced?

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Old 07-26-2013, 11:53 PM   #3
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Default Re: 02' SL1 Stalling Problem. Fuel ? A Sensor ?

Mileage is at 91,600. Just did a tune-up, fixed my high revving by cleaning the throttle body. Replaced the ECTS. That is all I have done to it.

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Old 07-27-2013, 05:56 AM   #4
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Default Re: 02' SL1 Stalling Problem. Fuel ? A Sensor ?

1-Try measuring fuel pressure. A loaner gauge may be borrowed from Autozone or PepBoys.

2-With relatively low mileage, a possibility of a partially blocked catalytic converter may exist. Catcons are rigid porous ceramic like material. Banging the bottom of the catcon for loose catguts would imply a disintegrating catcon with material blocking exhaust flow. Removing the front O2 sensor on the exhaust manifold allows an alternate exhaust path. A brief LOUD drive can reveal whether or not the catcon is clogged.

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Old 07-27-2013, 09:21 AM   #5
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Default Re: 02' SL1 Stalling Problem. Fuel ? A Sensor ?

I had a similar problem with my car and the stalling. I changed the crankshaft sensor and the issue was fixed...

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Old 08-01-2013, 01:50 PM   #6
wiggley
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Default Re: 02' SL1 Stalling Problem. Fuel ? A Sensor ?

I changed out the crankshaft position sensor. Took it on a test drive. Same thing, stalled out at 3/4 tank . Moving on to test the fuel pressure and the catalytic convertor.

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