Trying to troubleshoot my starting issue. It's a 93 SI VTEC with 285k, no mods, it has a h22a4 swapped but I was having same issues when the h22 was in there so I don't think the motor is to blame.

The car always starts, but on the first start of the day or after a long sit, it hesitates and feels sluggish to start, every start thereafter is no problem. It idles perfect and accelerates good.

After researching and troubleshooting as best I could I feel it's one of three things, the main relay, the FPR, or maybe the cap and rotor. I don't want to waist money and throw a bunch of parts at it that don't need replacing.

Can anybody give suggestions or insight that have may experienced or run across this issue. Thanks in advance.

 

any trouble codes stored?

try a new battery

 

No codes and new battery within the year

 

I had the same problem. I went to a local junk yard and grabbed a main relay, didnt fix it.

I did a valve adjustment at honda, fixed it.

My car would hesitate and feel at a loss of power while warming up.

Run some STP complete fuel injector cleaner for a full tank, then change the oil to a high milage synthetic blend(quaker state is what i use). then go for a valve adjustment.

add the small bottle into a full tank http://www.stp.com/products/fuel-add...ystem-cleaner/

oil i use
http://www.quakerstate.com/CA/?gclid...motor-oil/defy

I also fill up with 94 octane. I got new fuel injectors(you can clean yours), timing belt and spark plugs. I get 380 miles per tank. city.

 

the next time you go to start your car for the first time of the day, do this:
turn the ignition on, but don't attempt to crank it. watch the dash. you'll see the check engine light come on for a few seconds, then shut off. turn the ignition off. turn the ignition on again. watch for the CEL to come on again for a few seconds, then shut off. NOW try starting the car.
after doing ^this^, does it start normally? or does it still have trouble starting?