Go Back   Team-BHP > Under the Hood > Technical Stuff


Reply
 
Thread Tools Search this Thread
Old 19th November 2007, 19:23   #1
BHPian
 
Join Date: Jan 2006
Location: Gurgaon
Posts: 213
Thanked: 61 Times
Default MPFI Esteem missing with full tank.

Hi,

On my recent drive to Himachal I found that if I fill up full tank the car starts missing a lot till the fuel falls to around 75% of the tank. First I thought it was bad fuel but after comming back to delhi and filling up from my regular pump the problem still exists. It misses in high gear a lot and gets difficult to drive but once the fule level comes down its back to normal.

I tried the following things:

Opened the fuel cap to see if it was air locking.
Reset the ICU by disconnecting the battery terminal.
Maruti service station guy in Rampur tried to check the fuel flow on the injector by removing the fule line and said that the fuel flow was fine and it was not a clogged fuel filter. He advised to get the injectors cleaned.

Well for now im not filling up full tank and looking for help ..
bhogalrajnish is offline   Reply With Quote
Old 19th November 2007, 20:25   #2
Team-BHP Support
 
Jaggu's Avatar
 
Join Date: May 2004
Location: Bangalore
Posts: 17,752
Thanked: 7,475 Times
Default

do check the fuel pump also
Jaggu is offline   Reply With Quote
Old 19th November 2007, 21:34   #3
Senior - BHPian
 
rr_zen's Avatar
 
Join Date: Sep 2006
Location: Chennai, India
Posts: 1,711
Thanked: 262 Times
Default

As Jaggu has pointed out, please check the fuel pump too. This could be the culprit in most cases. I am not sure why the MASS advised you to get the injectors cleaned. If they were dirty, it doesnt really matter if the tank was full or half full for the engine to miss.

By the way, the title of your thread made me think for a second that your car was stolen with a tank full of petrol.
rr_zen is offline   Reply With Quote
Old 20th November 2007, 08:10   #4
Senior - BHPian
 
Lukeskywalker's Avatar
 
Join Date: Feb 2006
Location: Bangalore
Posts: 1,396
Thanked: 1,149 Times
Default

Quote:
By the way, the title of your thread made me think for a second that your car was stolen with a tank full of petrol.
Same here, and on further reading I further assumed that it becomes invisible on a full tank. LOL, Just kidding!!
Lukeskywalker is offline   Reply With Quote
Old 20th November 2007, 12:04   #5
k36
BHPian
 
k36's Avatar
 
Join Date: Dec 2005
Location: Pune
Posts: 133
Thanked: 19 Times
Default

How does one identify/notice misfiring? I've never experienced this... but then my driving experience is just under 10k km.
k36 is offline   Reply With Quote
Old 20th November 2007, 12:24   #6
Senior - BHPian
 
narayan's Avatar
 
Join Date: Aug 2006
Location: Singapore
Posts: 2,772
Thanked: 1,166 Times
Default

Quote:
Originally Posted by Lukeskywalker View Post
Same here, and on further reading I further assumed that it becomes invisible on a full tank. LOL, Just kidding!!

i thought mpfi esteem along with a full tank ( of whatever ! ) is missing..

anyway it looks like fuel pump issue only
narayan is offline   Reply With Quote
Old 20th November 2007, 17:58   #7
Team-BHP Support
 
bblost's Avatar
 
Join Date: Jul 2007
Location: Hyderabad
Posts: 9,650
Thanked: 6,663 Times
Default

Quote:
Originally Posted by k36 View Post
How does one identify/notice misfiring? I've never experienced this... but then my driving experience is just under 10k km.

not only you but the whole world will know,
just wait till your Miss becomes your Mrs and starts firing.


btw.

an engine misfire or ignition failure (causing unburnt fuel to enter the exhaust)

Engine misfires can overheat and destroy the converter as the excessive amounts of unburned fuel are broken down within it, especially when the engine is under heavy loads. Vehicles equipped with OBD-II diagnostic systems are designed to alert the driver of a misfire condition, along with other malfunctions, using the Malfunction Indicator Lamp or "Check Engine" light. If the misfire and engine load can produce heating severe enough to cause catalyst damage, the MIL will flash until the misfire or engine load is reduced.

read more at the source: Catalytic converter - Wikipedia, the free encyclopedia
bblost is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
One Full Tank on my Black Beauty: Bangalore - Guruvayur -Bangalore: Verna CRDI SX VarunM Travelogues 18 4th May 2012 22:43
More pickup with a full tank? greenhorn Technical Stuff 32 26th April 2010 11:09
Esteem fuel pump(mpfi) in esteem-carb tank techn0l0gist Technical Stuff 0 13th June 2009 22:03
Engine Stalls and shuts down during de clutch ONLY with GAS TANK FULL in Accent darthvader5000 Technical Stuff 20 7th May 2009 19:59


All times are GMT +5.5. The time now is 10:08.

Copyright 2000 - 2017, Team-BHP.com
Proudly powered by E2E Networks