2006 TOYOTA VOXY WITH A 1AZFSE LOSES POWER AT 4000 RPM AND THE FUEL PRESSURE DROPS TO ALMOST ZERO. ACCELERATES FINE UNTIL 4000 AND UNDER HARD THROTTLE

Question 1

0helpful

1answer

Idels fine runs good up to 4000 rpm anything over 4000 rpm it shuts off unless u throttle back.

Check two things. First the fuel pressure when it starts to cut back. You may be loosing pressure. And second, do an exhaust system pressure test to see if you have too much back pressure in the system restricting exhaust flow.

Mar 10, 2019 • Cars & Trucks

1helpful

5answers

I've got a 1996 jeep grand Cherokee with the 5.2 v8 fuel injected Holley throttle body. My problem is while driving at soft or low acceleration it accelerates fine, but if you hit the throttle hard it

I would check the voltage on the throttle portion sensor with the engine off from idle to wide open throttle.If there are any dead spots, replace the sensor. If the tps checks out, you should check fuel pressure. If you have good fuel pressure, you may want to make sure there isn't a lot of slack in your timing chain. I don't believe you mentioned the mileage of your vehicle. Best of luck.

May 03, 2014 • 1996 Jeep Grand Cherokee

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1answer

Loses power in high gears

run fault codes and look for accelerator position sensor fault . Check for MAP/MAF sensors as well

Feb 18, 2014 • Cars & Trucks

1helpful

1answer

Car has trouble getting in gear.

sounds like 'flaring' of the auto, maybe a service at the auto shop will fix it.

Jan 25, 2014 • Pontiac Grand Am Cars & Trucks

0helpful

1answer

Rav4, 2003 model, loses power when climbing mountain, only 2000 rpm is reached

Possible low fuel pressure or restricted catalytic converter. Have fuel pressure and exhaust back pressure checked.

Jan 05, 2014 • 2002 Toyota RAV4

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1answer

96 toyota tacoma 4 cylinder manual loses power and sputters when the gas is pressed down hard. I can keep it going fine at slower speeds, but when the truck approaches a hill or if I try to accelerate...

It seems to me you may have a very lean air/fuel mixture so when you open the throttle for more air there is no corresponding fuel coming to give you enough power.
My first port of call would be the fuel filter. It may be clogged as you rightly point out. If there is no engine check light on that will iliminate the sensors. I'm sure you would have noticed fuel leaks though what would seem like very high fuel consumption so what remain is the pump.

Some garages may have a fuel pressure gauge to check the pressure but it's a lot cheaper just to replace the fuel pump. The old pump may sometimes have intermittent failure which a pressure gauge may not pick up.

Jun 01, 2017 • Toyota Tacoma Cars & Trucks

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1answer

Low fuel pressure on mazda rx8 2008 model, car does not accelerate properly on gets full power after 6500 rpm

You will need to have the fuel pressure monitored under a load with a special tool and also drive it for a while and see if the check engine light comes on, if it does have the system scanned and diagnose the codes received.

Oct 18, 2012 • Cars & Trucks

0helpful

1answer

I have a 1994 toyota pick up with the 22re. It starts and idles fine. When I give it throttle and it is under load it bogs down then accelerates then bogs down again. Sounds like it just isn't getting...

check your fuel pressure, it is either fuel pump, filter or regulator issue.

Apr 21, 2011 • 1994 Toyota Pickup

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1answer

When the vehicle is traveling at approx.2200RPM ( 100 km hr ).when you take your foot off the acclerator to slow down{ runing at normal operating temperature). the RPM stays the same or drops only...

Sounds like you should not be driving the vehicle at all until the issue is rectified.

Apr 15, 2017 • 1993 Toyota Camry V6

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1answer

Car totally loses power after 4000 rpm bad lag

sounds like one of a few things one [tps] throttle position sensor [which can be checked with a multi meter that costs zero and the other is on the fuel side faulty fuel pump or the fuel supply regulator which controls the fuel pressure needed at a particular time yates210456

Sep 28, 2008 • Subaru Impreza WRX STi Cars & Trucks

Question 2

Derrick Schultz

Toyota Master 11,405 Answers
Posted on Oct 12, 2019

Derrick Schultz

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There's a website reliable-store.com that has all this information about all this and manuals everything totally free there are many actually but I personally like few .. let me know if u need help
thanks

Answer 2 · 9/28/2008 12:00:00 AM

Anonymous

350 Answers
Posted on Sep 28, 2008

SOURCE: car totally loses power after

sounds like one of a few things one [tps] throttle position sensor [which can be checked with a multi meter that costs zero and the other is on the fuel side faulty fuel pump or the fuel supply regulator which controls the fuel pressure needed at a particular time yates210456

Marvin

85242 Answers
Posted on Nov 04, 2008

SOURCE: FUEL PRESSURE DROPS WHEN PUMP STOPS.HARD TO START

The fuel pressure check valve in the electric fuel pump has failed, you will have to replace the fuel pump, it is in the gas tank, also replace the filter at the same time or the warranty on the new pump will be voided.

Anonymous

6982 Answers
Posted on Jun 05, 2009

SOURCE: Fuel pressure drops immediately to zero when engine is shut off.

I am not really familiar with the setup there but I'd be looking for a second relay to kick the pump on when cranking.

Anonymous

721 Answers
Posted on Jun 21, 2009

SOURCE: 1995 toyota camry. loses rpm and dies while idling

Bad fuel pump or clogged filter. Limited info so I can't do much more. Check the catlytic converter,make sure it's clear.

Anonymous

11 Answers
Posted on Jul 19, 2009

SOURCE: Oil pressure drops to zero after warmed up or below 2700 RPM

Check the oil pressure with a test guage, if the finding are the same, the look at your oil filter, pump, pickup, or pressure relief valve.....

Answer 3 · 9/28/2008 12:00:00 AM

Anonymous

350 Answers
Posted on Sep 28, 2008

SOURCE: car totally loses power after

sounds like one of a few things one [tps] throttle position sensor [which can be checked with a multi meter that costs zero and the other is on the fuel side faulty fuel pump or the fuel supply regulator which controls the fuel pressure needed at a particular time yates210456

Answer 4 · 11/4/2008 12:00:00 AM

Marvin

85242 Answers
Posted on Nov 04, 2008

SOURCE: FUEL PRESSURE DROPS WHEN PUMP STOPS.HARD TO START

The fuel pressure check valve in the electric fuel pump has failed, you will have to replace the fuel pump, it is in the gas tank, also replace the filter at the same time or the warranty on the new pump will be voided.

Answer 5 · 6/5/2009 12:00:00 AM

Anonymous

6982 Answers
Posted on Jun 05, 2009

SOURCE: Fuel pressure drops immediately to zero when engine is shut off.

I am not really familiar with the setup there but I'd be looking for a second relay to kick the pump on when cranking.

Answer 6 · 6/21/2009 12:00:00 AM

Anonymous

721 Answers
Posted on Jun 21, 2009

SOURCE: 1995 toyota camry. loses rpm and dies while idling

Bad fuel pump or clogged filter. Limited info so I can't do much more. Check the catlytic converter,make sure it's clear.

Answer 7 · 7/19/2009 12:00:00 AM

Anonymous

11 Answers
Posted on Jul 19, 2009

SOURCE: Oil pressure drops to zero after warmed up or below 2700 RPM

Check the oil pressure with a test guage, if the finding are the same, the look at your oil filter, pump, pickup, or pressure relief valve.....

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2006 TOYOTA VOXY WITH A 1AZFSE LOSES POWER AT 4000 RPM AND THE FUEL PRESSURE DROPS TO ALMOST ZERO. ACCELERATES FINE UNTIL 4000 AND UNDER HARD THROTTLE

1 Answer

Derrick Schultz

5 Related Answers

Anonymous

Marvin

Anonymous

Anonymous

Anonymous

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Related Questions:

Idels fine runs good up to 4000 rpm anything over 4000 rpm it shuts off unless u throttle back.

I've got a 1996 jeep grand Cherokee with the 5.2 v8 fuel injected Holley throttle body. My problem is while driving at soft or low acceleration it accelerates fine, but if you hit the throttle hard it

Loses power in high gears

Car has trouble getting in gear.

Rav4, 2003 model, loses power when climbing mountain, only 2000 rpm is reached

96 toyota tacoma 4 cylinder manual loses power and sputters when the gas is pressed down hard. I can keep it going fine at slower speeds, but when the truck approaches a hill or if I try to accelerate...

Low fuel pressure on mazda rx8 2008 model, car does not accelerate properly on gets full power after 6500 rpm

I have a 1994 toyota pick up with the 22re. It starts and idles fine. When I give it throttle and it is under load it bogs down then accelerates then bogs down again. Sounds like it just isn't getting...

When the vehicle is traveling at approx.2200RPM ( 100 km hr ).when you take your foot off the acclerator to slow down{ runing at normal operating temperature). the RPM stays the same or drops only...

Car totally loses power after 4000 rpm bad lag

Not finding what you are looking for?

Cars & Trucks

Idels fine runs good up to 4000 rpm anything over 4000 rpm it shuts off unless u throttle back.

Ask a Question

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2006 TOYOTA VOXY WITH A 1AZFSE LOSES POWER AT 4000 RPM AND THE FUEL PRESSURE DROPS TO ALMOST ZERO. ACCELERATES FINE UNTIL 4000 AND UNDER HARD THROTTLE

1 Answer

Derrick Schultz

5 Related Answers

Anonymous

Marvin

Anonymous

Anonymous

Anonymous

Add Your Answer

Attachments: Added items

Related Questions:

Idels fine runs good up to 4000 rpm anything over 4000 rpm it shuts off unless u throttle back.

I've got a 1996 jeep grand Cherokee with the 5.2 v8 fuel injected Holley throttle body. My problem is while driving at soft or low acceleration it accelerates fine, but if you hit the throttle hard it

Loses power in high gears

Car has trouble getting in gear.

Rav4, 2003 model, loses power when climbing mountain, only 2000 rpm is reached

96 toyota tacoma 4 cylinder manual loses power and sputters when the gas is pressed down hard. I can keep it going fine at slower speeds, but when the truck approaches a hill or if I try to accelerate...

Low fuel pressure on mazda rx8 2008 model, car does not accelerate properly on gets full power after 6500 rpm

I have a 1994 toyota pick up with the 22re. It starts and idles fine. When I give it throttle and it is under load it bogs down then accelerates then bogs down again. Sounds like it just isn't getting...

When the vehicle is traveling at approx.2200RPM ( 100 km hr ).when you take your foot off the acclerator to slow down{ runing at normal operating temperature). the RPM stays the same or drops only...

Car totally loses power after 4000 rpm bad lag

Not finding what you are looking for?

Cars & Trucks

Idels fine runs good up to 4000 rpm anything over 4000 rpm it shuts off unless u throttle back.

Ask a Question

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Toyota wiring diagram.pdf....

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