Running Lean! :/

1. Skitts123 Regular Poster Joined: Jan 2012 Norwich Posts: 453 Saxo Mk2 Vtr (sold) 106 gti

   #1 18th February 2012, 11:06

   Just had my car plugged in as the engine light was on and it came up with engine running to lean!
   How can i fix this ? Any help will be helpful thank you in advance.
2. Baz Saxperience Hardcore! Joined: Nov 2005 Coventry Posts: 17782 Fiesta ST150

   #2 18th February 2012, 11:09

   Could be a few things, air filter could be blocked, injectors stuck open to name 2. Personally would start with the air filter
3. Skitts123 Regular Poster Joined: Jan 2012 Norwich Posts: 453 Saxo Mk2 Vtr (sold) 106 gti

   #3 18th February 2012, 11:12

   Ok cheers mate is it easy to do ?
4. Monkgti Infrequent Poster Joined: Feb 2012 New Ross Posts: 202 Saxo VTS/Xantia HDI

   #4 18th February 2012, 11:27

   injectors stuck open and blocked air filter would lead to the car running rich as it would be getting 2 much fuel and not enough air but running lean would be the opposite, underfueling so could be number of things, fuel pump on the way out or blocked as with fuel filter, could be tps or map either
5. Skitts123 Regular Poster Joined: Jan 2012 Norwich Posts: 453 Saxo Mk2 Vtr (sold) 106 gti

   #5 18th February 2012, 11:32

   Its had a new fuel pump so it cant be that. whats tps ? i take it map means map sensor ?
6. Baz Saxperience Hardcore! Joined: Nov 2005 Coventry Posts: 17782 Fiesta ST150

   #6 18th February 2012, 11:34

   Quote:

   Originally Posted by Monkgti injectors stuck open and blocked air filter would lead to the car running rich as it would be getting 2 much fuel and not enough air but running lean would be the opposite, underfueling so could be number of things, fuel pump on the way out or blocked as with fuel filter, could be tps or map either

   o aye haha, always get it mixed up! Best start would be fuel filter/pump

   1 user thanked this post: Monkgti
7. Skitts123 Regular Poster Joined: Jan 2012 Norwich Posts: 453 Saxo Mk2 Vtr (sold) 106 gti

   #7 18th February 2012, 11:37

   How will i be able to tell if the fuel pump is blocked ? Would i have to put another one in there and see how it goes ?
8. Baz Saxperience Hardcore! Joined: Nov 2005 Coventry Posts: 17782 Fiesta ST150

   #8 18th February 2012, 11:38

   Yeah just replace it, they are only a few quid, there is a guide on here if you don't know how to do it. Was posted by Mark51
9. Skitts123 Regular Poster Joined: Jan 2012 Norwich Posts: 453 Saxo Mk2 Vtr (sold) 106 gti

   #9 18th February 2012, 11:46

   I just remembered i have a spare one so i will get that put in. Cheers mate