Cranks but won't start in cold...please help!!!
Posted: January 27th, 2004, 1:09 am
I have a 1993 Mazda that refuses to start when it is cold. We've been having -20 C days and worse. It will crank and crank for hours, sounds like its about to start but won't. After hours of this with boost it will start and will repeatedly start thereafter and run mint until its sat for the night again. Here's whats been done to try to fix;
-replaced spark plugs and wires
-checked battery-is good
-gasoline antifreeze
-new gas
-fuel pressure seems good
-has spark although it is questionable if it is weak
-check engine light was coming on, cleared and pulled codes
first time 17, 23, 24....cleared again and now reads only 23, which i know is right oxygen sensor BUT don't have a clue why that is coming up now...originally thought the first codes might have been due to flooding the engine
-and yes did an oil change
have had 3 mechanics working on it...1 was a mazda tech for few years. Also called to Mazda shop and they said igniter....
BUT...why the code 23?
Can a faulty oxygen sensor be the cause of it not starting in cold weather?
Or is the igniter the whole reason.
Since this problem started 3 weeks ago the first set of codes came on at the exact time it wouldnt start. Also if I get it started
and CEL doesnt come on it will definitely come on at about 4000 Rpm if you maintain it for 2 minutes, if that means anything at all. Which
to me seems like a fuel problem but could an igniter do this too?
Or, is the O2 sensor the whole blame. I've never heard of faulty O2 sensor to blame for a car not starting in the cold.
If I had cash to blow right now I would just start buying parts but don't so am looking for some reasonable conclusion as to why it could
be the igniter.
Please Help !!!
-replaced spark plugs and wires
-checked battery-is good
-gasoline antifreeze
-new gas
-fuel pressure seems good
-has spark although it is questionable if it is weak
-check engine light was coming on, cleared and pulled codes
first time 17, 23, 24....cleared again and now reads only 23, which i know is right oxygen sensor BUT don't have a clue why that is coming up now...originally thought the first codes might have been due to flooding the engine
-and yes did an oil change
have had 3 mechanics working on it...1 was a mazda tech for few years. Also called to Mazda shop and they said igniter....
BUT...why the code 23?
Can a faulty oxygen sensor be the cause of it not starting in cold weather?
Or is the igniter the whole reason.
Since this problem started 3 weeks ago the first set of codes came on at the exact time it wouldnt start. Also if I get it started
and CEL doesnt come on it will definitely come on at about 4000 Rpm if you maintain it for 2 minutes, if that means anything at all. Which
to me seems like a fuel problem but could an igniter do this too?
Or, is the O2 sensor the whole blame. I've never heard of faulty O2 sensor to blame for a car not starting in the cold.
If I had cash to blow right now I would just start buying parts but don't so am looking for some reasonable conclusion as to why it could
be the igniter.
Please Help !!!