Throttling issues

I agree with Paul, check the basics first , I cant really understand your explination completely, but does sound like its sticky, either at the pedal or at the butterfly. That is if the pedal phyiscally is not doing anything while attempting to give 5%-10% throttle and then all of a sudden gets unstuck and the car gets a nice jerk. But if you have complete movement of pedal with minimal force and smooth pivoting throughout the whole motion then it might be something else, so start looking at the sensor operation.

check the simple things first and possibly save yourself some money and pointless headache

So for that you can use 'Carby cleaner',it comes in a can.

Spray it into the Throttle body while the car is running,give it a good dose to clean all the crap out of there.Rev the engine while you are doing this to force all the crap through the system,it may cough and splatter a bit,that's perfectly normal.

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Originally Posted by beeza

So for that you can use 'Carby cleaner',it comes in a can.

Spray it into the Throttle body while the car is running,give it a good dose to clean all the crap out of there.Rev the engine while you are doing this to force all the crap through the system,it may cough and splatter a bit,that's perfectly normal.

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Be careful which throttle bodies you do this on.
On newer vehicles the throttle bodies have a coating on them and spraying them with carby cleaner will damage this coating.

is there resistance to the throttle at all? IE not smooth ?

check the throttle cable that its not catching anywhere.Grab some carby cleaner , clean out the throttle body and around the butterfly too.

Cheers Paul,I had never heard of that.

And offcoarse,adjust the throttle cable.

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Originally Posted by beeza

Cheers Paul,I had never heard of that.

And offcoarse,adjust the throttle cable.

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No probs. I'm pretty sure it's some form of teflon coating (similar to that on frying pans). It obviously helps stop gunk from sticking to it.

With newer TB's its better to just wipe them clean.

Yep thats right, newer TB sensors are very very sensitive and prone to failure if you spray carby or any other 'safe' product down the TB, be ready to pay for new one possibly.

ive checked pedal, butterfly and cable and all are smooth... i am starting to narrow down to tps.. but that will have to waite for a week or two.. the s300 is not in as yet due to not tuned at all and running badly so the p73 is back in for now... but will be getting retuned hopfully start of next month.. i had a look at the s manager program and EGHT i conpletly understant what your saying so it will be on the cards with the tune.. just need to find someone to tune it either near hervey bay or if so drive to brissy.....

ive have been told the progrmaing comes with all the base maps so tuning souldnt take much more than 2 - 3 hours tops, would this be accurate to say??

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Originally Posted by big tone

ive checked pedal, butterfly and cable and all are smooth... i am starting to narrow down to tps.. but that will have to waite for a week or two.. the s300 is not in as yet due to not tuned at all and running badly so the p73 is back in for now... but will be getting retuned hopfully start of next month.. i had a look at the s manager program and EGHT i conpletly understant what your saying so it will be on the cards with the tune.. just need to find someone to tune it either near hervey bay or if so drive to brissy.....

ive have been told the progrmaing comes with all the base maps so tuning souldnt take much more than 2 - 3 hours tops, would this be accurate to say??

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dude use the s300....ur basically using a stock b18CR ecu via the stock base maps that come smanager but ur able to adjust the tps so the ecu can recognise the signal better.

heres all the available base maps:
http://img11.imageshack.us/img11/2196/58451033.jpg

thats what you need to calibrate. the tps parameters in the scale tps box.
http://img11.imageshack.us/img11/7025/64470497.jpg

sounds like ur car is stock so you dont need a tune to run s300. just calibrate the stock base map. i mean u can get a tune and save fuel and u'd have a better air fuel ratio but u dont need a tune to fix the problem ur having.

even better, record a datalogging and post it here, on honda tech or the hondata forums for opinion. its definently an electrical fault.

ok cool, thanks for that.. i have run the s300 b4 and used the stock -itr base map but the car ran like a bit of a pig and the fuel, well it smelt like someone poored fuel into my lap,
im still umformilular with the afr setings to play with it myself so id leave to someone who knows what they're doing.. as for stock its only had the very basics i/h/e and i know that shouldnt make much diff to the way its running.

something happened like that on the work ute, change sparks and spark leads, it was missing

nah theres spark with mine.. the other thing i noticed was the tacho was fluctuating rapidly when it had no throttle..