Hi, to all i'm new in this forum, I'm a noob with hondata, I recently bought a Ls/vtec and it cames with Honda s300 the problem is, when i drive the car every day to my work sometimes after 10 mins of ride by highway when i make some stop car stalls or still at idle for a few seconds but after 3 or 4 seconds idle bounces betwen 1400 - low.. and then stalls... idk exactly what is the problem due to car makes it sometimes not always, somedays run smoth and perfect and sometims stalls on every stop. I don't know if it is a problem with temperature, tps, Please help me!. Im attaching a datalog of the car stopped and also im attaching the map of the car.
fyi i bought the swap on USA and now is running here on europe

let me know if its enough or what could be wrong thank you so much to all answers

 

Where the map and log?

 

More than likely the tune isn't great. Post the datalog of your a/f ratio's at idle and we'll take a look....

 

Good day, to all!

many many thanks for your repplies here you have the datalog and map

datalog

cars map

as i mentioned this I bought the swap and we've installed on my car, IDK if there is a problem with tps or something else

 

bump! any help? any S300 guru can help me??

 

Bump! help!

 

At least please tell me if everything is correct with TPS or MAP...

and if someone can have a look on my cars map i'd appreciate

Btw, I've here 3 more datalogs

cold start at morning

After highway

Cold start at noon

 

bump! 222 views... just a few posts.... plz help!

 

Sorry it says that I'm not authorized, so I can't look at them.

So you bought the swap here in the USA and you're in Europe, correct? What came with the swap, what is different from what the S300 was originally tuned for?

 

Whats the set-up...

 

hondata trash.

 

we can't see what you posted.....

 

sorry.. there you have

Cars map

Datalog Idle 1 min

Cold Start morning

After highway morning

Cold start at noon

there you have guys Idk why but trying to make datalogs hondata sometimes gets dc without any reason, note how rpm's bounces at low rpm on the datalog of cold start

idk if there is something wrong with my TPS sensor or map sensor....

I really appreciate your help

Btw, yes I've purchased the motor on Usa and we've made the swap here, so trying to imagine what can be wrong, we're having some problems setting idle, it was tightening cable (nobody is able to manage s300 around here)

many thanks in advance to all!

 

What are the specs on the motor??

 

hi!
b18c1 block / pr3 head
blox stg 2 cams
Itr intake manifold
70MM TB
Rc injectors 440cc
fuel is 95 Ron here in europe i think equals to 91 US aki
please let me know if u need something else.... also... tps is ok? and what about map??

thx to all!

 

bump! for help!

 

Your minimum idle speed is at 1300 rpm, the car always shows 1% throttle opening, the iac duty cycle is all the way up.

Check the tps voltage, lower the minimum idle speed down to what you want it to idle at, try playing with the IAC duty cycle to see if that has any effect on it.

Do you have a wideband on the car? What air fuel ratio does the car idle at?

 

Hi

no i don't have a wideband on the car =S, to be honest car runs rly great at high speed all my problem is idling or low speed, and i was reading and i found that maybe my problem is with my TPS, my mechanic here doesn't know anything about hondata and he was playing thightening the cable
my problem is my tps? could be solved scaling the TPS?
thank you so much for help!

 

You might as well drive blind folded down the highway without a wideband.

 

sorry i don't get you.... :S the reason why i don't have the wideband is because i didn't tune the car, swap comes with ecu and everything just to plug and play... the problem is my iddling...

thx!

 

You can't adjust the idle by tightening the throttle cable. The throttle has to close all the way or the car will not idle correctly. You NEED a wideband and a competent mechanic to fix the problem.

 

Turn the car on but don't start it, go to parameters, then TPS. You can see the values under TPS scaling; minimum/maximum. For the minimum reading make sure your foot is off the gas and hit read. The percentage should change. Then put the gas to the floor and hit read for the maximum. The percentage will most likely change. Then upload and save the calibration.

The rest should be done by a tuner. I'm not familiar with the B-series so I can't tell you how those cams like to idle.

 

thank you!!!!

so do you think that there is something wrong with my TPS?

 

Hi I scaled my tps, and as you said the percents are now different

first i got

minimum 0 / maximum 104,6

now i have

minimum 1,94 / maximum 105,08

I think there is something wrong with my tps...

 

I don't think there is anything wrong with your tps but if your throttle cable is holding the throttlebody open it will never read 0 and will never idle correctly. If the throttle is closed all the way you need to make sure the voltage when it's closed reads the correct amount.

Someone correct me if I'm wrong but I think even if you scale the TPS to read 0 and 100 percent in hondata the voltage does still have to be adjusted correctly, right?