csweatherston
Member
Registered: 16th Jan 06
Location: Devon
User status: Offline
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ok, ive had a problem for ages where my car runs excessively rich........averaging 25-30 to a gallon 
killed 2 cats.....
i cant figure out what it is, ive tried;
*new vaux lambda sensor,
*new vaux cts
(recently)*new crank sensor
*3 different sets of injectors.
i tried putting my 268 cams in the otherday, and on idle it would just flood......then wouldnt start again as the plugs were too wet......
so out with them and back on std cams.
what can i do??as i would like to use my cams really
(only answer if you actually know please)
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Warren G
Member
Registered: 14th May 06
Location: Kent
User status: Offline
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ECU?
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csweatherston
Member
Registered: 16th Jan 06
Location: Devon
User status: Offline
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what could be wrong with the ecu tho 
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csweatherston
Member
Registered: 16th Jan 06
Location: Devon
User status: Offline
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hmm............any other ideas from people?....i dont really want ot go buying an ecu yet 
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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30mpg is not really all that bad tho?
What engine is it? c16xe or x16xe?
Maybe afm problem if c16.
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Ben G
Member
Registered: 12th Jan 07
Location: Essex
User status: Offline
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when its running really rich does it smell of petrol to the extent where it smells like you have been drenched in it? as this is what mine is like and i don't average much at all about 30mpg max.
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
User status: Offline
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you can try guessing on the web for months mate.
get yourself down to somewhere with a RR and a wideband lambda!
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csweatherston
Member
Registered: 16th Jan 06
Location: Devon
User status: Offline
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im undecided now.....my injector pulse is fine.
although im thinking the map sensor could be picking up pulses in the vaccume
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csweatherston
Member
Registered: 16th Jan 06
Location: Devon
User status: Offline
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checked the lambda earlier....its pulsing fine, giving a lovely sine wave.... volts varing between .300 + .950ish......
so as far as i can see thats fine.
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csweatherston
Member
Registered: 16th Jan 06
Location: Devon
User status: Offline
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using my vast memory from college, the ecu's fuelling is controlled via, readings taken from the throttle pot compared to the map sensor.
do map sensors just go week?
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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Ive never heard of a map sensor failing.
TPS is used for throttle position and rate of opening/closing.
MAP is the load on the engine.
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csweatherston
Member
Registered: 16th Jan 06
Location: Devon
User status: Offline
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and there both measured agains each other (using lambda also) to give correct fueling.
please refer to my 1st post...part in brackets
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csweatherston
Member
Registered: 16th Jan 06
Location: Devon
User status: Offline
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just dug out some old threads:
CTS - i fitted a new one but maybe its dodgy?
EGR valve - possibly clogged (even tho its blanked off)....??
maybe?
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