Hi all,
I have a problem starting with cold engine. When I start the engine
I have to wait about 5-10minutes. In other case it doesn't work
steady and the mixture is very rich.There is a black smoke.
Cold start problem :(
Moderators: denny, vtspower, webmasters
I thought that the problem is in the temperature sensor, but I did
some tests with constant resistors and the situation was the same.
I noticed the good activity of the stepper motor, so it works.
When it's cold and I start the engine it works at low idle speed.
After 10 minutes the idle speed rises sharply. It's the same with
constant resistor instead of temperature sensor. So there is
other sensor or something else....maybe the ECU that changes
the idle speed.
some tests with constant resistors and the situation was the same.
I noticed the good activity of the stepper motor, so it works.
When it's cold and I start the engine it works at low idle speed.
After 10 minutes the idle speed rises sharply. It's the same with
constant resistor instead of temperature sensor. So there is
other sensor or something else....maybe the ECU that changes
the idle speed.
[quote="Joost"][quote="tanov"]
Is it the right place for this?
[/quote]
can't be better
it could also be the rubber leaderships "snakes"
of the vacum on the left side and on the back side of the injection unit[/quote]
WTF zijn lijderschaps slangen??
Snakes --> tubes/hoses neem ik aan, maar van leaderships kan ik al helemaal niets maken
Is it the right place for this?
[/quote]
can't be better
it could also be the rubber leaderships "snakes"
of the vacum on the left side and on the back side of the injection unit[/quote]
WTF zijn lijderschaps slangen??
Snakes --> tubes/hoses neem ik aan, maar van leaderships kan ik al helemaal niets maken
did you check out the gas valve resistor?
this seems to be a common problem with ax...
first find out if the current between pins 1 and 5 is around 5v
(turn off ignition, pull out multi ehm thing, turn ign. on)
if thats ok put back multy thing
try to measure between pins 1 and 2(while the multything is in) if you move gas valve you should see the readings fluently go up and down, try the same with pins 1 and 4 (btw pin 3 is missing, start counting right to left)
5 4 2 1
- - - -
between pin 1 and 2 with gasvalve closed around 1V
between pin 1 and 2 " " open around 4,5V
1 4 closed 0V
" " 1 4 open around 4V
good luck!
this seems to be a common problem with ax...
first find out if the current between pins 1 and 5 is around 5v
(turn off ignition, pull out multi ehm thing, turn ign. on)
if thats ok put back multy thing
try to measure between pins 1 and 2(while the multything is in) if you move gas valve you should see the readings fluently go up and down, try the same with pins 1 and 4 (btw pin 3 is missing, start counting right to left)
5 4 2 1
- - - -
between pin 1 and 2 with gasvalve closed around 1V
between pin 1 and 2 " " open around 4,5V
1 4 closed 0V
" " 1 4 open around 4V
good luck!
You mean a throttle position sensor (potentiometer)?
I think it is OK, because it is renewed before an year. (about $300
)
But is it the right voltage on idle? Now the voltage is 0.7V.
The person who made the settings didn't know the right values.
In the Autodata program the idle voltage is 1V.
What is the right? What is your?
I think it is OK, because it is renewed before an year. (about $300
)
But is it the right voltage on idle? Now the voltage is 0.7V.
The person who made the settings didn't know the right values.
In the Autodata program the idle voltage is 1V.
What is the right? What is your?
How about your lambda sensor. The thing in your exhaust which measures the O2. Normaly this thing measures the rich mixture and the ecu reagulates the mixture back to lambda 1.
Don't walk behind me, I may not lead. Don't walk in front of me, I may not follow. Don't walk beside me either. Just pretty much leave me the f#ck alone.
yep the potentio meter i meant..
got a carb myself ....
so cant measure mine but values ar proximinations..
so 0,7 sounds quite alright
about the lambda sensor....
the fact that the problem only starts when the engine is becoming heated makes a point checkin the lambda sensor, it could give a higher voltage >1V
this would explain why the ecu gives more fuel...."thinks" its a lean mixture so ads some fuel?
sounds like a probable explenation to me...
btw please tell if and how your problem is solved
got a carb myself ....
so cant measure mine but values ar proximinations..
so 0,7 sounds quite alright
about the lambda sensor....
the fact that the problem only starts when the engine is becoming heated makes a point checkin the lambda sensor, it could give a higher voltage >1V
this would explain why the ecu gives more fuel...."thinks" its a lean mixture so ads some fuel?
sounds like a probable explenation to me...
btw please tell if and how your problem is solved
the black smoke would most likely not be an injection problem but more likely a problem with your engine (oil leakage).
if this is the case there is a possibility the head gasket is leaking?
open radiator run engine and look for bubbles.
but if the problem is in the block itself bad pistons=compression, I would seriously think about a new block or car.
if this is the case there is a possibility the head gasket is leaking?
open radiator run engine and look for bubbles.
but if the problem is in the block itself bad pistons=compression, I would seriously think about a new block or car.
Oil gives blue smoke. Maybe you could force the ecu into emergence mode by removing the wire of the lambda The engine manangement light on your dash should light up. Then there's a whole different injection behavior. If the problem still occurs changes are your engine itself has died.
Don't walk behind me, I may not lead. Don't walk in front of me, I may not follow. Don't walk beside me either. Just pretty much leave me the f#ck alone.
tanov wrote:I think the lamp is disconnected by
the seller
might just be a broken lamp....
My oil and water are stable. There are no leaks and level changes.
do jou have to refill the oil frequently?
my BX liked it a lot! and gave nice black(blue?) smoke when I started her
Never the less it drove fine.
only quite thirsty in gas and oil
No the manangement detects there something wrong, and follows its pre programmend mixture settings. Which are most of the time a bit rich. Sometimes the engine stalls but there are also cases that the engine works fine. If the engine keeps turning and the smoke's gone, then it's your engine manangement.
An easier solution is to drive it to a dealer they can hook your car up to a computer en see if there's something wrong with the injection system.
An easier solution is to drive it to a dealer they can hook your car up to a computer en see if there's something wrong with the injection system.
Don't walk behind me, I may not lead. Don't walk in front of me, I may not follow. Don't walk beside me either. Just pretty much leave me the f#ck alone.