Does anyone's cold start sound like this?

[tenkyouken]

Tuned on e50. Only happens after sitting for a bit (6+ hours). Otherwise, it starts smoothly. Anything I could check or be worried about?

Sponsored

 

[lucky phil]

Trying to figure out what you are worried about.
Phil

 

[tenkyouken]

Trying to figure out what you are worried about.
Phil

Doesnt feel like it starts smoothly

 

[lucky phil]

Looks acceptable to me but then again I grew up starting cars with a manual choke where your job was to convince the engine it needed to start running so I don't expect perfection on every start.
Phil

 

[razorlab]

Cold start fueling tables need work.

 

[tenkyouken]

Cold start fueling tables need work.

Can that really be tuned?

 

[razorlab]

Can that really be tuned?

Yes

 

[skyviper80]

Mine does that when running e30/50 blends. Something with the ethanol that makes it crank a little longer on cold start.

 

[Carbon0]

That started happening to me after I replaced the spark plugs. Or maybe I started realizing the difference once I did that.

Is it really okay that it starts like that or is tuning that to make it better necessary? I’m running the 93 ots mhd map

 

[Erty]

Yeah, mine sounds the exact same only when running E. (cold starts)

 

[FuzzyRev]

Ethanol is notoriously a little harder to start, especially in temps below freezing. In winter, the FlexFuel GM trucks crank much longer and idle rough for the first 10-20 seconds if E85 is in the tank. It doesn't vaporize well at cold temps, so liquid fuel is in the combustion chamber.

 

[Jacky]

Mine sounds sort of like that on cold start. I thought it was my dash cam draining battery-so I fully charged by my battery and tried again -wasn't battery/low battery issue. Do you use 5W30? I used 5W30. OEM suggests 0W20.

 

[tenkyouken]

Update: definitely just the ethanol. Just me overreacting.

 

[SilverMk5]

Update: definitely just the ethanol. Just me overreacting.

My car starts like this if parked outside overnight or parked for more than 2 nights consecutivel indoors. It was like that when my car was bone stock and still does it after tuned. Always seemed a bit strange to me.

 

[Jmanlevan]

My car starts like this if parked outside overnight or parked for more than 2 nights consecutivel indoors. It was like that when my car was bone stock and still does it after tuned. Always seemed a bit strange to me.

I can echo this. Mine is basically stock, I just have bolt ons with no tune on pump premium 91 fuel and when I start my car after it has sat for 2 days or more the intial fire up sounds like the car is struggling to start for about 1 full second and then it fully turns over. Always been that way since I took delivery of that. I’ve always thought that was weird too but haven’t worried about it too much.

Sponsored