Hi was just wondering where I could get some information of values such as throttle position at idle mine is 19% and fully depressed with engine warm mine is 76%. My car is 2008 grande punto 1.4 16v. Thanks.


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I would say 19 % at idle is probably about right most manufactures are around that but the 76 on W.O.T is a tad low tbh

Avaxbox said:

Hi was just wondering where I could get some information of values such as throttle position at idle mine is 19% and fully depressed with engine warm mine is 76%. My car is 2008 grande punto 1.4 16v. Thanks.


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Click to expand...

I can read mine again cause I don't remember but I think my starjet has the same values

What's your obd-ii program?

ps, what are your readings % on fuel trims (long term)

Hi my long term fuel trim is -.08 and I am just using a bluetooth plug in called torque pro cost about £8 all in but very useful.

try http://www.multiecuscan.com/ it might have acceptable limits listed too

dave said:

try http://www.multiecuscan.com/ it might have acceptable limits listed too

Click to expand...

Is it available for ipad or Android or do I have to blow the cobwebs off the laptop?

You have to use a laptop...

My long term is about -3.00% (negative) I'm wondering why.

ok check screenshots, although engine was still cold (~50C) will check again tomorrow after a ride with engine hot.

iPhone app is EOBD-facile/ the other screen is from multiecuscan.

iPhone TPS = 20%
Multiecuscan= 6.69%

was that screen shot taken in closed loop was b1 s1 switching ? B1s2 looks to be a tad weak normally they will sit at 0.50 if everything running ok
I would say of you have a -50 reading on the etc unless you live next to a fat bloke in a coca cola suit there's a prob with the etc .

cmosfxx said:

You have to use a laptop...

My long term is about -3.00% (negative) I'm wondering why.

ok check screenshots, although engine was still cold (~50C) will check again tomorrow after a ride with engine hot.

iPhone app is EOBD-facile/ the other screen is from multiecuscan.

iPhone TPS = 20%
Multiecuscan= 6.69%

Click to expand...

As long as the Long term trim is between +5 or -5 I don't think it's a problem depends what sort of driving you do if you do a long journey at a constant Speed then it should be close to 0 but round town and spirited driving will cause it to go up a bit

K333fer said:

was that screen shot taken in closed loop was b1 s1 switching ? B1s2 looks to be a tad weak normally they will sit at 0.50 if everything running ok
I would say of you have a -50 reading on the etc unless you live next to a fat bloke in a coca cola suit there's a prob with the etc .

Click to expand...

What's the etc and what is weak the voltage? Or fuel trim?

ECt is engine coolant temperature sensor
You have 2 types of fuel trim long term and short term
Short term is the temporary adjustment made to the fuelling
Long term is a more permanent adjustment that is made to the fuelling when the ecu sees the short term sitting at a higher reading for longer it then will take 5% off of the short and add to the long and so on and so on until it gets to the end of its peramiter on long term and then logs a code
Yes the voltage is weak ie higher voltage =weak mixture from memory anyway

K333fer said:

was that screen shot taken in closed loop was b1 s1 switching ? B1s2 looks to be a tad weak normally they will sit at 0.50 if everything running ok
I would say of you have a -50 reading on the etc unless you live next to a fat bloke in a coca cola suit there's a prob with the etc .

Click to expand...

Yes B1S1 is switching fast I just captured at the low voltage phase.
S2 Voltage is ~0.50 all times normaly (check multiecuscan previous screenshot after-cat)
Check new attached screens also.

ps. Like a said engine was cold
edit: yes closed loop.

Yeh they look ok , shouldnt be reading -50 cold though should be reading actual engine temp easiest way is to cross ref with ambient air temp when engine stone cold before starting they should read roughly the same

Ooh wait, I wrote ~50 (approximately) not negative -50

Oh yeh see it now doh ! Note to self I phone 6 plus next !!

cmosfxx said:

Yes B1S1 is switching fast I just captured at the low voltage phase.
S2 Voltage is ~0.50 all times normaly (check multiecuscan previous screenshot after-cat)
Check new attached screens also.

ps. Like a said engine was cold
edit: yes closed loop.

Click to expand...

Can you check what the TPS % is when pedal fully depressed so I can compare. Thanks.

I'll check again tomorrow after a long ride so everything is hot and operating normal.

Multiecuscan screenshot is ok?

cmosfxx said:

I'll check again tomorrow after a long ride so everything is hot and operating normal.

Multiecuscan screenshot is ok?

Click to expand...

Anything is ok it doesn't matter warm or cold just for a rough idea thanks.

Avaxbox said:

Hi was just wondering where I could get some information of values such as throttle position at idle mine is 19% and fully depressed with engine warm mine is 76%. My car is 2008 grande punto 1.4 16v. Thanks.


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Click to expand...

multiecuscan :

After a 30min ride:
Throttle position
Idle (and not moving): ~5.91%
Accelerating: ~99.83%

I'm attaching pedal sensor values too.

cmosfxx said:

multiecuscan :

After a 30min ride:
Throttle position
Idle (and not moving): ~5.91%
Accelerating: ~99.83%

I'm attaching pedal sensor values too.

Click to expand...

Thanks my values are nowhere near that I will start by cleaning the throttle valve to see if it improves