Register Login
endrop - for all your online needs
Reply
 
Thread Tools
Old 20-04-2017   #1
Join Date: Apr 2014
Posts: 11
Thanks: 0
Trader Rating: 0
United Kingdom 
100HP Throttle

I'm struggling to find a solution to a lumpy idle on my 100HP.
Connected it up to multiecuscan - no errors.
Searched the forum and got a few pointers.
(The spark plugs, air filter and oil all recent - though the poor idle arrived before this service)
Checked all the air lines / vacuum. All OK.
Checked all plugs / connectors were secure. So far so good.

Back to the forum!
One post mentioned cleaning the throttle.
Most of my previous cars have been sensor overload - this little Panda though has me stumped. Other than one electrical connector on the throttle body itself - I've not found any MAF or intake sensor. So really all I've done is clean the butterfly valve in the throttle... Seems like I'm missing something?

Any help at this point would be hugely appreciated!
Thanks
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

j60dnl is offline Reply With Quote Quote 
Old 20-04-2017   #2
'08 100HP'
 
Gavv8's Avatar
Join Date: Aug 2013
Location: Devon
Posts: 1,806
Thanks: 31
Trader Rating: 0
Gavv8 has donated!
United Kingdom 
Re: 100HP Throttle

Quote Originally Posted by j60dnl View Post
I'm struggling to find a solution to a lumpy idle on my 100HP.
Connected it up to multiecuscan - no errors.
Searched the forum and got a few pointers.
(The spark plugs, air filter and oil all recent - though the poor idle arrived before this service)
Checked all the air lines / vacuum. All OK.
Checked all plugs / connectors were secure. So far so good.

Back to the forum!
One post mentioned cleaning the throttle.
Most of my previous cars have been sensor overload - this little Panda though has me stumped. Other than one electrical connector on the throttle body itself - I've not found any MAF or intake sensor. So really all I've done is clean the butterfly valve in the throttle... Seems like I'm missing something?

Any help at this point would be hugely appreciated!
Thanks


Does it rev cleanly and drive normally?
__________________
Gavv8 is offline Reply With Quote Quote 
Old 21-04-2017   #3
Join Date: Apr 2014
Posts: 11
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: 100HP Throttle

Thanks for the reply.
It drives fairly smooth although there is (to my mind) either flat spots or hesitation when accelerating. Almost like the engine gulps for air every so often.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

j60dnl is offline Reply With Quote Quote 
Old 21-04-2017   #4
Join Date: Nov 2014
Location: suffolk
Posts: 645
Thanks: 23
Trader Rating: 0
United Kingdom 
Re: 100HP Throttle

if you have changed the plugs, then your issue sounds like a coilpack.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

dac69er is offline Reply With Quote Quote 
Old 21-04-2017   #5
Join Date: Mar 2015
Posts: 76
Thanks: 1
Trader Rating: 0
Scotty100hp has donated!
United Kingdom 
Re: 100HP Throttle

Mine is the same, fine under hard acceleration but slightly lumpy otherwise.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Scotty100hp is offline Reply With Quote Quote 
Old 21-04-2017   #6
...so many Panda's...
 
P1NKY's Avatar
Join Date: Jan 2015
Location: 'ampshire
Posts: 171
Thanks: 15
Trader Rating: 0
P1NKY has donated!
United Kingdom 
Re: 100HP Throttle

Quote Originally Posted by dac69er View Post
if you have changed the plugs, then your issue sounds like a coilpack.
I'd go with @dac69er. I had a similar problem with a VX220
__________________
1988 Fiat Panda 4X4 - Scrappy
2007 Fiat Panda 100HP - APY
P1NKY is offline Reply With Quote Quote 
Old 23-04-2017   #7
Join Date: Sep 2009
Posts: 13,848
Thanks: 656
Trader Rating: 0
United Kingdom 
Re: 100HP Throttle

Spray some Easy Start around the air intake areas including the intake manifold gaskets lines. Any changes in engine revs indicate an air leak.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

DaveMcT is offline Reply With Quote Quote 
Old 29-04-2019   #8
Join Date: Apr 2019
Location: Southampton
Posts: 36
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: 100HP Throttle

Recently bought myself a 100hp and Iím having lumpy idol with occasional lumpy acceleration to a point where the Amber engine warning light flashed for a few seconds then went off after I pulled back a little. I was assuming it was the EGR?
Recent service and oil change plus new cambelt and water pump so Iím hoping this is an easy DIY fix!?
Is it worth changing the plugs/HT leads? And air filter? The exhaust is shot to bits so I will need a new one sooner or later! Could they be an issue?
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

GazzP87 is offline Reply With Quote Quote 
Old 02-05-2019   #9
Join Date: Sep 2009
Posts: 13,848
Thanks: 656
Trader Rating: 0
United Kingdom 
Re: 100HP Throttle

The 100HP has an electronic throttle so the pedal potentiometer can also be an issue. If it's breaking down, the ECU will respond accordingly but wont see it as a fault.

The car has a MAP sensor on the intake manifold. Check that is clean as well as the throttle body.

A miss-fire caused by intermittent spark causes the ECU to enrich the air/fuel ratio. The unused oxygen going down the exhaust looks to the ECU like the engine is running weak so it turn up the fuel flow. If that goes too far the O2 sensors can get dirty. Fuel consumption is poor and eventually you will get an EML warning.

Others may know how to test the coil packs (stick coils) but I've generally found the ones that smell cooked (yes really) are dead or dying (you know - that electrical burning smell). They have to work in a hot environment and withstand enormous voltages so it's no surprise they'll fail eventually.


Some sources for coil packs.
https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=Fiat+1.4+ 16V+coils&_sacat=0
Lets us know if any will fit the 100HP especially something like the pack of four for £40. Even with 66% saving over OEM prices, it still beats £44 each at S4P.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

DaveMcT is offline Reply With Quote Quote 
Reply
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump
Similar Threads
Thread Thread Starter Forum Replies Last Post
(T) Compatible Throttle body for 1.2 16v with a throttle cable Smifis Punto (Mk2/2b) 4 09-06-2015 20:59
(Tu) Throttle bodies on a 100hp!!! 100HP finchy Panda 5 05-12-2012 15:58
(T) 100hp Throttle Sensor Danlittle7 Panda 6 18-11-2012 19:30
(T) 105 JTD - Where is Throttle Body / Throttle Potential Sensor b1gduk Marea 4 22-01-2006 20:53