2000 Civic -- Issues with low end hesitation
#1
2000 Civic -- Issues with low end hesitation
I am having an issue with my 2000 Civic EX (D16Y8) where it struggles on the low end especially on WOT. The issue only presents itself when it is at normal operating temperatures, but if it is cold (starting up first thing in the morning and driving off) it runs normal with no lack of power. I have done a bunch of troubleshooting already and running out of ideas on what to do next.
Things I have done recently (I know not all of these pertain to my issue, but I thought I'd list it anyway):
-Replaced fuel filter -- Fuel pump works fine
-Replaced spark plug wires
-Gapped and replaced spark plugs
-Replaced manifold absolute pressure (MAP) sensor
-Cleaned throttle body
-Cleaned idle air control (IAC) valve
-Replaced catalytic converter
-Replaced timing belt
-Set ignition timing to 12 degrees BTC
-Tested throttle position sensor (TPM -- .5 idle / 4.5 WOT)
-Unplugged primary o2 sensor to see if issue is still present -- Yes, the issue is still present
-Replaced head gasket
-Replaced distributor o-ring
-Replaced oil pan gasket
-Replaced air filter
I am not sure if it is a bad distributor, but I will pull apart the cap and rotor later this week to see if there is any corrosion present. Only thing that I have not done is replaced the ECU, both o2 sensors, and check compression.
If you have any ideas on what I should try next, it would be of great help!
TLDR;
-When engine is cold it runs fine
-When engine is warm (normal operating temp) it has hesitation all the way up until 2700 rpms
-Replaced, checked, and serviced certain things already
Things I have done recently (I know not all of these pertain to my issue, but I thought I'd list it anyway):
-Replaced fuel filter -- Fuel pump works fine
-Replaced spark plug wires
-Gapped and replaced spark plugs
-Replaced manifold absolute pressure (MAP) sensor
-Cleaned throttle body
-Cleaned idle air control (IAC) valve
-Replaced catalytic converter
-Replaced timing belt
-Set ignition timing to 12 degrees BTC
-Tested throttle position sensor (TPM -- .5 idle / 4.5 WOT)
-Unplugged primary o2 sensor to see if issue is still present -- Yes, the issue is still present
-Replaced head gasket
-Replaced distributor o-ring
-Replaced oil pan gasket
-Replaced air filter
I am not sure if it is a bad distributor, but I will pull apart the cap and rotor later this week to see if there is any corrosion present. Only thing that I have not done is replaced the ECU, both o2 sensors, and check compression.
If you have any ideas on what I should try next, it would be of great help!
TLDR;
-When engine is cold it runs fine
-When engine is warm (normal operating temp) it has hesitation all the way up until 2700 rpms
-Replaced, checked, and serviced certain things already
Last edited by kevjitzoo; 03-20-2019 at 07:44 PM. Reason: Added more notes.
#3
#5
Re: 2000 Civic -- Issues with low end hesitation
Once you hit 2750 it seems to operate fine? I’ve heard the ECT sensor can mess with performance.. but usually just in starting/ stalling.
I know now for a fact, coolant level does play a role.
I know now for a fact, coolant level does play a role.
#6
Re: 2000 Civic -- Issues with low end hesitation
Yes, when it hits 2700 and above it's fine! Also when the car runs cold it's fine.
Trending Topics
#8
#10
Re: 2000 Civic -- Issues with low end hesitation
Update:
-Swapped and tested known working TPS sensor and calibrated
-Swapped and tested known working distributor and timed
Issue is still present. I've also noticed that the issue sometimes resolves itself and comes back.
Weak fuel pump maybe?
-Swapped and tested known working TPS sensor and calibrated
-Swapped and tested known working distributor and timed
Issue is still present. I've also noticed that the issue sometimes resolves itself and comes back.
Weak fuel pump maybe?
Thread
Thread Starter
Forum
Replies
Last Post
t0p_sh0tta
Tech / Misc
15
08-13-2014 05:18 AM
hondan00b95
Honda Civic / Del Sol (1992 - 2000)
5
07-24-2014 12:57 PM