01 civic ex doesn't like cold starting

Manni765

New Member
So my 2001 civic ex will crank and sounds fine but it takes 2-3 cycles to get to start in mildly cold weather it cranks and begins to sputter but fails a couple of times before it starts any ideas on what it could be ?
 

Manni765

New Member
P1298-injector driver module failure.,but before it threw thew the same code and said electronic load detector
P0420- catalyst system efficiency below threshold bank 1
 


Manni765

New Member
- the p1298 always returns immediately but the p0420 sometimes takes a couple minutes to come back, I have not replaced the spark plugs yet but I was thinking about doing that as soon as I get paid
 

Manni765

New Member
- alright thanks il get back to you next Thursday for results
 


lowlife9

New Member
Registered VIP
5+ Year Member
well you could use a mechanical o2 simulator instead of buying a new cat if your state doesn't have emissions test, wink wink.
 

Manni765

New Member
Update : I changed the plugs and it definitely runs better but it still has a starting issue it's just a little bit faster start, I'm thinking it's the fuel pump and thoughts ?
 

Manni765

New Member
turns the engine fine it only happens when it's cold and I've been told my fuel pump might be going out but I want to consider any other possibilities before I drop 170 dollars on a fuel pump, next time I get a chance in will try to take a video of it happening and post it
 

Manni765

New Member
Before I ran some seafoam through the gas tank it would do this but I would have to cycle it like 3-4 times before it would start
 

Manni765

New Member
The only problem it has after it warmed up is once you get to a stop sign the rpm's drop down to idle then it drops even more to like 500 rpm then bumps back up to about 700-800 and all the lights stay off but the srs but that's not a problem
 


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