kyle'87
Advanced Member
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- 389
I have been having this problem for a while and it has got to the point I would like to try and get it fixed.
The problem manifest itself in the following way:
When attempting to move off quickly (in first gear) If I don't get the engine revs high enough (above 2500/3000) when I engage the clutch the engine bogs right down to below 1000rpms. If I keep my foot flat to the floor at this point the car will try to accelerate, it feels the same when you are going up a steep hill in 6th gear.
I'll try and get a video up to show what I mean.
No CEL codes at all.
so far I've thought/ read about the following:
This all started to become noticeable after I had a new clutch fitted. Would it be sensible to say that on the old clutch I would have had much bigger gap to get away with moving off quickly with lower revs where as now I need to be much more aware of the revs I engage the clutch with?
I plan to do some logging this weekend to try and see what the car is doing component wise when the car is bogging down.
Kpro dashboard log video
[youtube]https://www.youtube.com/watch?v=wJb4m26BDfY[/youtube]
you can see the first few launches may sound like I am dumping the clutch but I am not. The only way to get away quickly is to slip the clutch, which as Luke said, might be the way I need to learn to drive with a new clutch.
What I find odd is the MAP dropping to 0 when the clutch comes in, is that normal?
Something in my head says that the car is mapped based on the MAP readings. So, if the TPS was at 10% and the map when to 0 when the clutch comes in then the fuelling would be out hence the bogging.
Surely the MAP would only be at 0psi (even pressure between inlet pressure and atmosphere) when the throttle butterfly is fully open which is 100% TPS. This would correlate with having to have high revs to get away quickly because the MAP will not drop as the pressure difference will be as expected.
Secondly, why would the map drop so low when the clutch comes in?
Any ideas?
The problem manifest itself in the following way:
When attempting to move off quickly (in first gear) If I don't get the engine revs high enough (above 2500/3000) when I engage the clutch the engine bogs right down to below 1000rpms. If I keep my foot flat to the floor at this point the car will try to accelerate, it feels the same when you are going up a steep hill in 6th gear.
I'll try and get a video up to show what I mean.
No CEL codes at all.
so far I've thought/ read about the following:
- Servicing the car (happening next month)
- Changing the plugs (only been in 12 months)
- Changing the ignition coils (expensive fix! not normally a problem part in Honda)
- Changing the primary 02 sensor (current one only 18 months old, no CEL light yet)
- Tightening the throttle cable (is already tight, may need replacing if stretched)
- Investigate fuel delivery (change with OEM filter about 2 years ago)
- Change ELD (Done this, no difference)
- Change intake temp sensor
- Potentially get my map looked at
This all started to become noticeable after I had a new clutch fitted. Would it be sensible to say that on the old clutch I would have had much bigger gap to get away with moving off quickly with lower revs where as now I need to be much more aware of the revs I engage the clutch with?
Kpro dashboard log video
[youtube]https://www.youtube.com/watch?v=wJb4m26BDfY[/youtube]
you can see the first few launches may sound like I am dumping the clutch but I am not. The only way to get away quickly is to slip the clutch, which as Luke said, might be the way I need to learn to drive with a new clutch.
What I find odd is the MAP dropping to 0 when the clutch comes in, is that normal?
Something in my head says that the car is mapped based on the MAP readings. So, if the TPS was at 10% and the map when to 0 when the clutch comes in then the fuelling would be out hence the bogging.
Surely the MAP would only be at 0psi (even pressure between inlet pressure and atmosphere) when the throttle butterfly is fully open which is 100% TPS. This would correlate with having to have high revs to get away quickly because the MAP will not drop as the pressure difference will be as expected.
Secondly, why would the map drop so low when the clutch comes in?
Any ideas?