misfire@1500revs when cold
#1
Wahay!! I've lost my Virginity!!
Thread Starter
misfire@1500revs when cold
Hello people,
I've got a horrible misfire or over fueling problem when i try to pull away when engine is cold. Reaches 1500 revs and goes limp.
It's a 2wd 88 saph.
I've changed dizzy/phase/rotor/leads/grpA coil/ignition mod.
I'm running out of ideas
Can anyone help?
Also when it goes limp throws out loads of fuel!
I've got a horrible misfire or over fueling problem when i try to pull away when engine is cold. Reaches 1500 revs and goes limp.
It's a 2wd 88 saph.
I've changed dizzy/phase/rotor/leads/grpA coil/ignition mod.
I'm running out of ideas
Can anyone help?
Also when it goes limp throws out loads of fuel!
#5
PassionFord Post Whore!!
iTrader: (1)
As said first one to check is the CTS output, trouble is it's hard to do accurately unless you know the scales, i.e. Temp Vs volts.
Thing is it's a good idea to change them every so often and are cheap as well, I brought one but haven't fitted it yet as they are awkward to get to!
But if this was the suspect you would get problems when at running temp as well?
Martin
Thing is it's a good idea to change them every so often and are cheap as well, I brought one but haven't fitted it yet as they are awkward to get to!
But if this was the suspect you would get problems when at running temp as well?
Martin
#6
Wahay!! I've lost my Virginity!!
Thread Starter
#7
PassionFord Post Whore!!
iTrader: (1)
The CTS is one of the main (And important) inputs to the ECU, it is merely a thermistor, it's the same sensor as the ACT but in a different housing.
These can go out of range after a while giving false readings, so the ECU is being told the engine is colder than what it actually is, hence more fuel is injected.
Martin
These can go out of range after a while giving false readings, so the ECU is being told the engine is colder than what it actually is, hence more fuel is injected.
Martin
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#8
Wahay!! I've lost my Virginity!!
Thread Starter
As said first one to check is the CTS output, trouble is it's hard to do accurately unless you know the scales, i.e. Temp Vs volts.
Thing is it's a good idea to change them every so often and are cheap as well, I brought one but haven't fitted it yet as they are awkward to get to!
But if this was the suspect you would get problems when at running temp as well?
Martin
Thing is it's a good idea to change them every so often and are cheap as well, I brought one but haven't fitted it yet as they are awkward to get to!
But if this was the suspect you would get problems when at running temp as well?
Martin
At running temp the problem is still there but no where near as bad, still i can notice its getting worse... I will replace this item if i can find it!
Thanks again
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