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Old 11-05-2019, 05:10 PM   #1
ochumi
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Default problems with my d16a9

hi
i have a problem with a d16a9

the car starts well, and has good idleness and if I give a thorough footprint accelerates well, the problem I have if
I accelerate a little and I keep the engine starts as if to drown and accelerate
if I accelerate to the bottom and keep it doing the same ...
I'm a little lost I do not know what can be
Let's see if you can help me

here some videos

https://drive.google.com/open?id=1Gj...QVLfa-5z1vJXL4

https://drive.google.com/open?id=1C4...mNEn9qfl6cvKhV

i have a PM7 obd0 and im not getting any error...

thanks
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Old 12-05-2019, 07:39 AM   #2
250ptm
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For a first step.
When you floor it the engine appears to accelerate normally which means the TPS WOT voltage is probably ok and also the TPS idle voltage is ok.

Try checking the TPS voltage change for a smooth operation between idle and WOT. If the voltage change is not smooth but jerky, it could cause the engine to bog down when slowly accelerating from idle.

The Honda manual gives a good checking procedure for this, and there are other threads on this site.
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Old 14-05-2019, 10:15 PM   #3
ochumi
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hi i check the voltage of the TPS Sensor and works well and smooth operation..
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Old 15-05-2019, 11:03 AM   #4
250ptm
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Unfortunately since you don’t have any fault codes, you will have to go through systematic checks to find the problem.

So its back to basics. I do hope you have a Honda manual around they can be very helpful troubleshooting a problem.

Check the FITV valve is screwed in fully, (loads of U-tube e vids on this), then look for vacuum leaks around the TB or intake manifold, do a MAP voltage check to see if its ok. Then check Timing & Fuel press regulator.

Don't do everything at once, check the engine operation after each test, cause if you do everything at once and its ok, you will never know what the problem really was.

One other thing have you modified the ECU with a chip or is it stock?
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Last edited by 250ptm; 15-05-2019 at 11:18 AM.
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Old 19-05-2019, 04:15 PM   #5
gonk43
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here to help us again 250ptm!
I do hope it is not as complicated as my problem you helped with a while back, where it was my main relay.
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Old 22-05-2019, 12:50 PM   #6
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yeah, that was an interesting problem! always happy to help!
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Old 23-05-2019, 06:36 PM   #7
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never been a problem since.
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Old 29-05-2019, 03:40 PM   #8
ochumi
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Quote:
Originally Posted by 250ptm View Post

Check the FITV valve is screwed in fully, (loads of U-tube e vids on this), then look for vacuum leaks around the TB or intake manifold, do a MAP voltage check to see if its ok.

One other thing have you modified the ECU with a chip or is it stock?
all this itīs ok the ecu itīs stock also i tried with another

i have to check this
Then check Timing & Fuel press regulator.
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