2.0 ABF running very rich
Posted
#1464175
(In Topic #193741)
Old Timer
Changed my plugs today and the ones taken out looked like a lump of coal they're that black. The smell from the exhaust even smells rich. Now the engine has had lots of mods like high lift cams, re map and chip and heads ported and a strait through exhaust and a air induction system. This is how I bought the car and I'm far from being a mechanic but is there and way of manually adjusting the fuel mix or would that create all kinds of issues as other than being very lumpy on tick over it drives real nice and very very fast?
It's all shits and giggles until someone giggles and shits
Posted
Old Timer
Anyone
It's all shits and giggles until someone giggles and shits
Posted
Old Timer
it cant be adjusted manually, the ecu does the fueling and the spark unlike kjet 16v's, its got to be down th the map/chip on it thats fueling wrong
Posted
Old Timer
Brad. said
it cant be adjusted manually, the ecu does the fueling and the spark unlike kjet 16v's, its got to be down th the map/chip on it thats fueling wrong
Thanks for that. Is it best to take it to a dyno specialist?
It's all shits and giggles until someone giggles and shits
Posted
Settled In
A common problem on our fuel injected Citi Golfs is a faulty water temp sensor fooling the ECU into thinking that the engine is cold thus increasing the fuelling to compensate. In 90% of cases where the guys complain about sudden poor consumption replacing the sensor will bring it back to normal.
1983 Golf GT 2.1 16V with throttles/1978 Golf LS 2.1 ABF with throttles/2008 Citi Storm 1.4i/2007 Hyundai Getz - my daily
Posted
Old Timer
Torker said
A common problem on our fuel injected Citi Golfs is a faulty water temp sensor fooling the ECU into thinking that the engine is cold thus increasing the fuelling to compensate. In 90% of cases where the guys complain about sudden poor consumption replacing the sensor will bring it back to normal.
Will give it a try first, thanks
It's all shits and giggles until someone giggles and shits
Posted
Old Timer
Posted
Old Timer
I've seen the wires to the throttle body kinda in a bad shape cause over fueling.
Posted
Old Timer
Brad. said
I've seen the wires to the throttle body kinda in a bad shape cause over fueling.
Will check that out too thanks
It's all shits and giggles until someone giggles and shits
Posted
Settled In
sallyandsean said
Am I correct in thinking it's the blue one?
That looks like an oil pressure sender, unfortunately my ABF engines doesn't have the stock sensor layout anymore so I found the following on the Web, hope it helps…
1983 Golf GT 2.1 16V with throttles/1978 Golf LS 2.1 ABF with throttles/2008 Citi Storm 1.4i/2007 Hyundai Getz - my daily
Posted
Old Timer
Torker said
Brilliant thanks.
It's all shits and giggles until someone giggles and shits
Posted
MOTY 2013
if it has the lambda probe fitted (it should!!) you can test if its bad by unplugging it. if car is much better then chances are you need a new one.
if its running the full abf management there should be a diagnostics wire from the ecu to behind the fusebox, if you're lucky the port will also be wired in but if not its only 3 wires to add it yourself provided the wire is there. its grey/white on vw lumps, and on seat its green for whatever reason. it runs from ecu pin 43 anyway.
get this going then you can scan for fault codes, and even read all the sensor inputs in real time so this will really help in your fault diagnosis
if its running the full abf management there should be a diagnostics wire from the ecu to behind the fusebox, if you're lucky the port will also be wired in but if not its only 3 wires to add it yourself provided the wire is there. its grey/white on vw lumps, and on seat its green for whatever reason. it runs from ecu pin 43 anyway.
get this going then you can scan for fault codes, and even read all the sensor inputs in real time so this will really help in your fault diagnosis
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Posted
Old Timer
rubjonny said
if it has the lambda probe fitted (it should!!) you can test if its bad by unplugging it. if car is much better then chances are you need a new one.
if its running the full abf management there should be a diagnostics wire from the ecu to behind the fusebox, if you're lucky the port will also be wired in but if not its only 3 wires to add it yourself provided the wire is there. its grey/white on vw lumps, and on seat its green for whatever reason. it runs from ecu pin 43 anyway.
get this going then you can scan for fault codes, and even read all the sensor inputs in real time so this will really help in your fault diagnosis
Thanks
It's all shits and giggles until someone giggles and shits
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