Car won't start when extremely cold...please help me figure it out
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Honda-Tech Member
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From: Tampa, FL
Car won't start when extremely cold...please help me figure it out
disclaimer: I live in florida so extremely cold to us is anything below 65 
anyways...sometimes my car will not start in the morning when its cold out. This all started when I killed my Optima yellow top battery about 2 weeks ago, which was completey recharged. This morning when I was out my friend checked the voltage on the battery and he said it was 11.7...which I believe was from all the cranking I was doing a few hours before. Friend says car started on the first turn when he tried @ 10am, which I totally expected.
Here's my hypothesis...my car used to be turbo and has bigger injectors in it, but I'm not sure what size. It is also hooked up to a resistor box that was completely rewired because I was having some other problems with it about a month back. I'm pretty sure my o2 sensor is shot as well as my gas mileage as plummuted and continues to get worse. It was in bad shape when we took off the turbo kit and I ran open header for about 2 weeks but the gas mileage went to **** AFTER I installed my RS*R exhaust. Now I can't even hold 15mpg it seems like
After the car completely warms up it acts like it doesn't want to pull in the lower RPM's. Do you think these problems might be correlating? I'm sure my problem lies between the injectors, battery and o2 sensor.
Specs:
1992 Civic Si
JDM b16a
stock JDM p30
new plugs
new dizzy
timing set @ stock 16degrees
holley 190lph fuel pump
cat delete/replaced with resonator
anymore details I will be more then happy to provide
anyways...sometimes my car will not start in the morning when its cold out. This all started when I killed my Optima yellow top battery about 2 weeks ago, which was completey recharged. This morning when I was out my friend checked the voltage on the battery and he said it was 11.7...which I believe was from all the cranking I was doing a few hours before. Friend says car started on the first turn when he tried @ 10am, which I totally expected.
Here's my hypothesis...my car used to be turbo and has bigger injectors in it, but I'm not sure what size. It is also hooked up to a resistor box that was completely rewired because I was having some other problems with it about a month back. I'm pretty sure my o2 sensor is shot as well as my gas mileage as plummuted and continues to get worse. It was in bad shape when we took off the turbo kit and I ran open header for about 2 weeks but the gas mileage went to **** AFTER I installed my RS*R exhaust. Now I can't even hold 15mpg it seems like
After the car completely warms up it acts like it doesn't want to pull in the lower RPM's. Do you think these problems might be correlating? I'm sure my problem lies between the injectors, battery and o2 sensor.Specs:
1992 Civic Si
JDM b16a
stock JDM p30
new plugs
new dizzy
timing set @ stock 16degrees
holley 190lph fuel pump
cat delete/replaced with resonator
anymore details I will be more then happy to provide
I'm a Jackass
Joined: Jun 2004
Posts: 494
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From: some where in, CLMT, USA
Re: Car won't start when extremely cold...please help me figure it out (spectacle)
the battery could be week try a friends tho before replacing I know batterys dont have as much juice when there cold and after it sits for the hole night with a alarm and what not you never know.
Thread Starter
Honda-Tech Member
Joined: Jan 2004
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From: Tampa, FL
Re: Car won't start when extremely cold...please help me figure it out (DumpeDc2)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DumpeDc2 »</TD></TR><TR><TD CLASS="quote">the battery could be week try a friends tho before replacing I know batterys dont have as much juice when there cold and after it sits for the hole night with a alarm and what not you never know.</TD></TR></TABLE>
I don't have an alarm
I don't have an alarm
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