When accelerating car bogs and no power

Hi,

What you are describing sounds like a weak fuel pump. With that, we need to check fuel pressure.

Here is a link that explains in general how it is done:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Here are the directions specific to your vehicle for testing. The attached pics correlate with the directions.

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2005 Toyota Camry L4-2.4L (2AZ-FE)
Component Tests and General Diagnostics
Vehicle Powertrain Management Fuel Delivery and Air Induction Fuel Pump Fuel Pressure Testing and Inspection Component Tests and General Diagnostics
COMPONENT TESTS AND GENERAL DIAGNOSTICS
ON-VEHICLE INSPECTION (From July 2003)

1. CHECK FUEL PUMP OPERATION AND FUEL LEAKS

a. When using the hand-held tester:
Check fuel pump operation.

1. Connect the hand-held tester to the DLC3.
2. Turn the ignition switch ON and push the hand-held tester main switch ON.

NOTE: Do not start the engine.

3. Select the ACTIVE TEST mode on the hand-held tester.
4. If you need help to select active test on the hand-held tester, refer to the hand-held tester is instruction manual.
5. Turn the ignition switch OFF.
6. Disconnect the hand-held tester from the DLC3.

pic 1

b. When not using the hand-held tester:
Check fuel pump operation.

1. Remove the C/OPN relay from the engine room J/B.
2. Using a service wire, connect terminals FP and +B of the engine room J/B.

NOTE: Pay close attention to the terminal connecting position to avoid a malfunction.

3. Turn the ignition switch ON, and check that the fuel pump operates.

NOTE: Do not start the engine.

c. Check that there are no fuel leaks after doing maintenance anywhere on the fuel system.
d. Turn the ignition switch OFF.
e. Remove the service wire from the engine room J/B.
f. Install the C/OPN relay to the engine room J/B.

2. CHECK FUEL PRESSURE

pic 2

a. Check that the battery positive voltage is above 12 V.
b. Disconnect the negative (-) terminal cable from the battery.
c. Purchase a new fuel tube and take out the fuel tube connector from its pipe.

Fuel tube: Part No. 23801-20190

pic 3

d. Remove the fuel pipe clamp from the fuel tube connector.

pic 4

e. Disconnect the fuel tube connector from the fuel pipe by pinching part A with your fingers, as shown in the illustration.

CAUTION:
- Always read the precautions before disconnecting the fuel tube connector (quick type).
- The fuel pipe line may spray fuel as a result of retained pressure that remains in it. Do not allow fuel to be sprayed in the engine compartment.

pic 5

f. Install SST (pressure gauge) and fuel tube connector using SST as shown in the illustration.

SST 09268-41047 (90467-13001, 95336-08070), 09268-45014 (09268-41200, 09268-41220, 09268-41250)

g. Wipe off any gasoline.
h. Reconnect the negative (-) battery cable.
i. When using hand-held tester:
Operate the fuel pump (see step 1 (a)).

j. When not using hand-held tester:
Operate the fuel pump (see step 1 (b)).

k. Measure the fuel pressure.

Fuel pressure: 304 to 343 kPa (3.1 to 3.5 kgf/sq.cm, 44 to 50 psi)

If the pressure is high, replace the fuel pressure regulator.
If the pressure is low, check the fuel hoses and connections, fuel pump, fuel filter and fuel pressure regulator.

l. Start the engine.
m. Measure the fuel pressure at idle.

Fuel pressure: 304 to 343 kPa (3.1 to 3.5 kgf/sq.cm, 44 to 50 psi)

n. Stop the engine.
o. Check that the fuel pressure remains as specified for 5 minutes after the engine has stopped.

Fuel pressure: 147 kPa (1.5 kgf/sq.cm, 21psi)

If the pressure is not as specified, check the fuel pump, pressure regulator and/or injectors.

p. After checking the fuel pressure, disconnect the negative (-) battery cable and carefully remove SST and fuel tube connector to prevent gasoline from spraying.
q. Reconnect the fuel inlet tube (fuel tube connector).

CAUTION: Always read the precautions before connecting the fuel tube connector (quick type).

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If fuel pressure checks good, the next check will be if you have a plugged catalytic converter. That can cause a major power loss.

Here is a link that explains symptoms of a plugged converter. The second link explains how to test one. Note that is indicates to disconnect the converter. That may be difficult on some vehicles, so you can simply remove an oxygen sensor before the converter. Although that will no provide enough flow, it should make a difference that is recognizable.

https://www.2carpros.com/articles/bad-catalytic-converter-symptoms

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

Let me know what you find or if you have other questions.

Take care,
Joe