Bogs down when warm.
Thread Starter
Honda-Tech Member
Joined: Feb 2008
Posts: 124
Likes: 1
From: Fremont, Ne, Dodge
Bogs down when warm.
first off i have a 92 with a jdm h22 swap 5 speed.
alright car runs perfect when it is cold. then when the car gets half way on the temp gauge it starts bogging. say im going 20 and hit the gas pedal to the floor it just bogs and takes like 10 seconds to get to like 40. the rpms dont jump or anythign when i hit the gas. there is no check engine light either.
things ive replaced.
fuel filter
drilled cleaned EGR ports
cleaned the IM and replaced all gaskets on it.
new tps
new knock sensor
flushed coolant
new spark plug wires and plugs
new tb gasket
3 different tb's
new dizzy
bypassed o2 sensor (not that)
new water pump
new timing belt
replaced broken 2nd butterfly box
checked for air leaks
new clutch and flywheel
different coil
different ecu
idk im thinking fuel pump, injectors....guess i could check the timing AGAIN. im stomped.
alright car runs perfect when it is cold. then when the car gets half way on the temp gauge it starts bogging. say im going 20 and hit the gas pedal to the floor it just bogs and takes like 10 seconds to get to like 40. the rpms dont jump or anythign when i hit the gas. there is no check engine light either.
things ive replaced.
fuel filter
drilled cleaned EGR ports
cleaned the IM and replaced all gaskets on it.
new tps
new knock sensor
flushed coolant
new spark plug wires and plugs
new tb gasket
3 different tb's
new dizzy
bypassed o2 sensor (not that)
new water pump
new timing belt
replaced broken 2nd butterfly box
checked for air leaks
new clutch and flywheel
different coil
different ecu
idk im thinking fuel pump, injectors....guess i could check the timing AGAIN. im stomped.
Honda-Tech Member
Joined: Nov 2008
Posts: 209
Likes: 1
From: Independence, KS, USA
Re: Bogs down when warm.
When the engine is cold, it ignores most of the sensors. Here are a few things that will cause this type of behavior:
1. O2 Sensor - This thing can cause all types of problems.
2. MAP Sensor (Manifold Pressure)
3. Mass Air Flow Sensor.
4. ECT (Engine Coolant Temp) Sensor with intermittent short.
5. Timing not advanced far enough.
6. Possible Throttle position sensor, but less likely since it runs OK cold.
I would wait a bit and see if someone else has some more specific suggestions.
1. O2 Sensor - This thing can cause all types of problems.
2. MAP Sensor (Manifold Pressure)
3. Mass Air Flow Sensor.
4. ECT (Engine Coolant Temp) Sensor with intermittent short.
5. Timing not advanced far enough.
6. Possible Throttle position sensor, but less likely since it runs OK cold.
I would wait a bit and see if someone else has some more specific suggestions.
Honda-Tech Member
Joined: Sep 2004
Posts: 924
Likes: 0
From: Pineville, Louisiana, USA
Re: Bogs down when warm.
When the engine is cold, it ignores most of the sensors. Here are a few things that will cause this type of behavior:
1. O2 Sensor - This thing can cause all types of problems.
2. MAP Sensor (Manifold Pressure)
3. Mass Air Flow Sensor.
4. ECT (Engine Coolant Temp) Sensor with intermittent short.
5. Timing not advanced far enough.
6. Possible Throttle position sensor, but less likely since it runs OK cold.
I would wait a bit and see if someone else has some more specific suggestions.
1. O2 Sensor - This thing can cause all types of problems.
2. MAP Sensor (Manifold Pressure)
3. Mass Air Flow Sensor.
4. ECT (Engine Coolant Temp) Sensor with intermittent short.
5. Timing not advanced far enough.
6. Possible Throttle position sensor, but less likely since it runs OK cold.
I would wait a bit and see if someone else has some more specific suggestions.
im curious why people give out help when they dont even know what they are talking about.... preludes do not have mass air flow sensors
Thread
Thread Starter
Forum
Replies
Last Post
acmoc
Honda CRX / EF Civic (1988 - 1991)
5
Dec 26, 2015 03:20 PM
raverx3m
Honda Civic / Del Sol (1992 - 2000)
3
Jan 23, 2014 08:57 AM
