[Honda93]

In the last week or so, it cranks for 2-3 seconds before starting whereas it used to start immediately. I installed a new starter 6 months ago as you all may recall. I also installed a K&N fuel filter 10 month ago. No issues until last week.

Research online and on FRRAX is pointing to a fuel pump or fuel pressure regulator. Or the battery. Or the spark plugs.

Car runs super fine once started and starts right up once it has been running. If it sits 6+ hours, it'll revert to needing extra time.

Suggestions?

[GCrites80s]

It could also be an injector (or more than one) not closing all the way.

[CrashTestDummy]

It could also be an injector (or more than one) not closing all the way.

Yes, it is supposed to hold pressure for a while. Much more than 10 PSI per minute, and i'd start looking at failed equipment

Hmmm, would a plug show a leaking injector(s), or would you have to pull them before starting to see who is wet?

Another thing to check: pull the vacuum hose off the regulator to make sure the diaphragm isn't blown. Although on a LS engine, one would expect all sorts of CELs, not so much on a LT* system.

This post has been edited by CrashTestDummy: Sep 8 2017, 02:47 AM

[GCrites80s]

It could also be an injector (or more than one) not closing all the way.

Yes, it is supposed to hold pressure for a while. Much more than 10 PSI per minute, and i'd start looking at failed equipment

Hmmm, would a plug show a leaking injector(s), or would you have to pull them before starting to see who is wet?

Another thing to check: pull the vacuum hose off the regulator to make sure the diaphragm isn't blown. Although on a LS engine, one would expect all sorts of CELs, not so much on a LT* system.

I'd say pulling the plug before starting is probably better. A cylinder that is rich all the time would turn dark brown or black but one that is only extra rich for 2-3 revolutions might not. But the plug could wet foul then turn brown from the cylinder being dead. As a 2-stroke guy I have killed a ton of plugs and many weren't discolored much at all.