villik_cf
New Member
Hi all!
first, I'm sorry for my english, I hope you can read it with no problem
I have an issue with my Accord. Every summer season we can not move off normally from red lights or other stop. It happens when outside temperature get over 30°C. I trying to solve that about 3 years, everytime, when I'm going to someone, they did not find anything or outside is cooler. In short - very very poor performance in low end, when is hot outside (when cold, works relatively ok), when WOT works ok after crossing 2500rpm,
This year I started to investigate on my own, so there is, what I did/changed/found:
First of all, I cleaned TB with IACV and did idle learn.. ( over 3 years multiple times...)
Changed fluids, spark plugs, filters.
Valve clearance.
Changed ECT
Changed MAP
Changed 02
After 02 change it was OK, but there was cold outside. SO..
still waiting for IAT
Changed battery, but I found, there is no voltage charge change over time - all time 14.4 (now 14.1, sometimes momentally drop 13.5)
This year it starts doing weird things. I just collect some data from OBD. When I stand still with engine ON, Long term fuel trim can get to -13% when no move, when I ride, It shows about -3%. When is cooler, -1%.
Check fuel injectors - no leak
check TPS - 0.48V with no spikes when move
02 sensor (old about 40000km) start to show constant line in Rich side.. It react to Lean when there is huge fuel trim into -%
I tried yesterday to do ecm reset (remove fuses under hood), and after about hour, i started a car and have a talk.. It runs about 30minutes, multiple times radiator fans turned on. Lambda have standard oscilation, so I go home. BUT, when I disengage a clutch or shift into N, engine revs to 1000, bounce and goes about 1700rpm - holds until I stop, then it drops back to 800...
Friend of mine told me, that some accords have a problem with condensing water above ECU. I have no other idea, what can be wrong. I spent a lot of money and I'm tired of it..
Have anybody any idea?
first, I'm sorry for my english, I hope you can read it with no problem
I have an issue with my Accord. Every summer season we can not move off normally from red lights or other stop. It happens when outside temperature get over 30°C. I trying to solve that about 3 years, everytime, when I'm going to someone, they did not find anything or outside is cooler
. In short - very very poor performance in low end, when is hot outside (when cold, works relatively ok), when WOT works ok after crossing 2500rpm, This year I started to investigate on my own, so there is, what I did/changed/found:
First of all, I cleaned TB with IACV and did idle learn.. ( over 3 years multiple times...)
Changed fluids, spark plugs, filters.
Valve clearance.
Changed ECT
Changed MAP
Changed 02
After 02 change it was OK, but there was cold outside. SO..
still waiting for IAT
Changed battery, but I found, there is no voltage charge change over time - all time 14.4 (now 14.1, sometimes momentally drop 13.5)
This year it starts doing weird things. I just collect some data from OBD. When I stand still with engine ON, Long term fuel trim can get to -13% when no move, when I ride, It shows about -3%. When is cooler, -1%.
Check fuel injectors - no leak
check TPS - 0.48V with no spikes when move
02 sensor (old about 40000km) start to show constant line in Rich side.. It react to Lean when there is huge fuel trim into -%
I tried yesterday to do ecm reset (remove fuses under hood), and after about hour, i started a car and have a talk.. It runs about 30minutes, multiple times radiator fans turned on. Lambda have standard oscilation, so I go home. BUT, when I disengage a clutch or shift into N, engine revs to 1000, bounce and goes about 1700rpm - holds until I stop, then it drops back to 800...
Friend of mine told me, that some accords have a problem with condensing water above ECU. I have no other idea, what can be wrong. I spent a lot of money and I'm tired of it..
Have anybody any idea?