I’ll try to describe the problem from the beginning.
2007 Lexus ES350. 240,000 km (148,000 mi)
With no warning, the engine started to run rough, giving my wife just enough time to pull over to the curb before dying. It would not crank over — low battery. I boosted it to get going, and about 10 minutes later, it died again. Would not start, even with boosting. I disconnected the battery posts, cleaned them, and boosted it to get going. I drove it home & did a thorough job of cleaning the posts, checked the charging voltage (14.5 volts) and left it over night.
The next day, after starting 4 times during errands, it died for good. I had to get it towed home, where it sits today, 2 weeks later. I keep a charger on it to ensure battery voltage for troubleshooting purposes.
It starts quickly, runs smoothly for 1 second, then shuts down as though someone turned off the ignition. Each time I clear the codes and try it again, it does exactly the same thing and throws the same codes — P0351 to P0356. If I try to start it immediately a second time, it misfires as though it has bad coils. If I wait a few minutes, it starts perfectly, runs perfectly for 1 second, and then dies.
I put a Tee in the fuel line and measured the fuel pump pressure. It’s right on spec — 49 psi.
I have an Innova 3150d scanner. Each time it captures the codes, it does a freeze frame on a different coil, but the memory dump is essentially the same:
Fuel Sys 1 OL
Fuel Sys 2 OL
Calc Load (%) 40.4
ECT(degF) 51.8
STFT B1(%) 0.0
LTFT B1(%) 0.0
STFT B2(%) 0.0
LTFT B2(%) 0.0
Eng RPM 1448
Veh Speed(mph) 0
Spark Adv(deg) 21.5
IAT(degF) 57.2
MAF(lb/min) 1.3
TPS(%) 19.6
O2S B1 S2(V) 0.015
STFT B1 S2(%) 99.2
O2S B2 S2(V) 0.015
STFT B2 S2(%) 99.2
Run Time(sec) 0
LAMBDA B1 S1 0.998
O2S B1 S1(V) 3.297
LAMBDA B2 S1 0.998
O2S B2 S1(V) 3.3
Command EVAP(%) 0.0000
Warm-up DTC Clr 0
Clr Dist(miles) 0
BARO(InHg) 28.3
LAMBDA B1 S1 0.998
O2S B1 S1(mA) 0.00
LAMBDA B2 S1 0.998
O2S B2 S1(mA) 0.00
CAT Te 11(degF) 55.6
CAT Te 21(degF) 55.6
CAT Te 12(degF) 55.6
CAT Te 22(degF) 55.6
ECU Volts(V) 13.964
Load Value(%) 19.2
EQ Ratio 0.682
Rel TPS(%) 0.4
TPS B(%) 51.8
ACC Pedal D(%) 15.7
ACC Pedal E(%) 31.8
Command TAC(%) 19.6
Clr Time 0h0m
I have a basic repair manual with all the schematics for this car, along with information showing how to remove and replace parts.
Not knowing the starting process, I would speculate that the engine starts with memory data instead of sensor data, and when it’s running, it tries to get the sensor data to make adjustments, and encounters some bad data which causes the engine to shut down. I just don’t know which sensors would cause the engine to shut down.
Může mi někdo ukazovat správným směrem?
Poslední úprava: před 6 lety 2 měsíci od Tyler.
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6 years 2 months ago #14371 by Chad
Odpověděl(a). Chad na téma 2007 Lexus ES350 won’t stay running
Starting, running for one second, and dieing is is a sign of security issues. Although I am not real familiar with Lexus’ immobilization system, I would bet that the computer is killing injector pulse. After it starts, runs for one second and dies, WITHOUT turning the key off, do you have injector pulse if you try cranking, again?
Any sign of a security light?
„Znalosti jsou zbraň. Dobře se vyzbrojte, než půjdete do bitvy.”
“Porozumění otázce je poloviční odpovědí.”
Když jsem se mýlil, naučil jsem se více, než když jsem měl pravdu.
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6 years 2 months ago #14392 by jack260
Odpověděl(a). jack260 na téma 2007 Lexus ES350 won’t stay running
Thanks Pole71. You may be on to something.
I haven’t been able to check the injectors for pulses, but I have observed the following:
1. The security light does not come on when the engine stops.
2. The security light starts to flash, and continues to flash when I turn the ignition off. 10 minutes later, with the key fob NOT in the vicinity, it was still flashing. The doors were NOT locked.
3. Engine starts, runs for 1 second, then stops.
a. If I turn the ignition off, then on immediately, it repeats the same performance.
b. If I attempt to start it again without turning the ignition off, it sputters, but will not start.
Does anyone know how to reset the engine immobilizer?
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6 years 2 months ago #14393 by Chad
Odpověděl(a). Chad na téma 2007 Lexus ES350 won’t stay running
Again, I am not very familiar with Lexus, but on other makes, if you turn they key on, the security light will come on. Leave the key in the «ON» position for 10 minutes. The light will go out. Turn the key off. Turn the key back to «ON» posistion. Wait 10 minutes, the light will turn off. Turn the key off. Turn key On. Wait 10 minutes, the light goes out. Turn the key off. Now, start the car.
Repeat the «Key on, light goes out, key off» cycle a total of 3 times (30 min). On the 4th time, start the car.
Be sure to have a battery charger connected.
„Znalosti jsou zbraň. Dobře se vyzbrojte, než půjdete do bitvy.”
“Porozumění otázce je poloviční odpovědí.”
Když jsem se mýlil, naučil jsem se více, než když jsem měl pravdu.
Chcete-li se připojit ke konverzaci, přihlaste se nebo si vytvořte účet.
- Příspěvky: 10
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