Hard starting after sitting for a few hours
05-07-2008, 11:26 AM
#11
5th Gear Member
Join Date: Jun 2007
Location: Orlando, FL
Posts: 2,276
RE: Hard starting after sitting for a few hours
5-10 seconds I dont see a big increase. Playing on the highway for long periods in the throttle, or back to back quick acceleration runs I have seen it get quite high.
But if you just stab it and go it takes a bit to climb.
But if you just stab it and go it takes a bit to climb.
05-08-2008, 04:09 AM
#12
2nd Gear Member
Join Date: Mar 2008
Location: Southern IL
Posts: 226
RE: Hard starting after sitting for a few hours
I have this same problem in my 08. It only has 3000 miles on it and I have a C&L intake and Brenspeed tune. Every now and then after sitting for a while I will try to start it and it will just crank and crank and crank, and then finally when it hits it runs ragged as hell for a little while and blows out a bunch of smoke. It's like it just sits and floods itself for some reason. I wouldn't think its tune related as I have the same mods as a million other people. I guess I should go try cleaning the intake sensors first and see if that helps. I just don't see why with it being off how it manages to flood itself?
05-08-2008, 09:26 PM
#13
4th Gear Member
Thread Starter
Join Date: Jul 2007
Location:
Posts: 1,062
RE: Hard starting after sitting for a few hours
I found a solution: don't wait for the fuel pump to prime.
I usually let the fuel pump makes its noise, then turn the key. If I start the car cold, without letting the pump prime, it starts right up like normal.
I usually let the fuel pump makes its noise, then turn the key. If I start the car cold, without letting the pump prime, it starts right up like normal.
05-09-2008, 04:05 AM
#14
Multi-Tasking Moderator!
Join Date: Nov 2006
Location: Detroit Rock City!
Posts: 15,618
RE: Hard starting after sitting for a few hours
You are right as well as moose! I had a cold starting issue when cold 40 or lower...resolved with a tweak of the tune! J
ORIGINAL: MustangGT0405
Good idea, I think that will cure alot of your problems.
MYGT500 - had a cold start issue I think that was tune related.
Good luck with the build.
Good idea, I think that will cure alot of your problems.
MYGT500 - had a cold start issue I think that was tune related.
Good luck with the build.
05-09-2008, 12:03 PM
#15
6th Gear Member
Join Date: Sep 2006
Location: Gainesville, FL
Posts: 11,278
RE: Hard starting after sitting for a few hours
ORIGINAL: CataclysmGT
I found a solution: don't wait for the fuel pump to prime.
I usually let the fuel pump makes its noise, then turn the key. If I start the car cold, without letting the pump prime, it starts right up like normal.
I found a solution: don't wait for the fuel pump to prime.
I usually let the fuel pump makes its noise, then turn the key. If I start the car cold, without letting the pump prime, it starts right up like normal.
Do you have a fuel pressure gauge? What's the fuel pressure after the pump runs?
05-12-2008, 09:35 AM
#16
5th Gear Member
Join Date: Jun 2007
Location: Orlando, FL
Posts: 2,276
RE: Hard starting after sitting for a few hours
Did you get the FRPP tuner yet?
Also I dont let the pumps prime I just turn it over. Dont get many cold starts in FL though, its been in the 90's lately.
Also I dont let the pumps prime I just turn it over. Dont get many cold starts in FL though, its been in the 90's lately.
05-12-2008, 04:37 PM
#18
6th Gear Member
Join Date: Sep 2006
Location: Gainesville, FL
Posts: 11,278
RE: Hard starting after sitting for a few hours
ORIGINAL: MustangGT0405
Did you get the FRPP tuner yet?
Also I dont let the pumps prime I just turn it over. Dont get many cold starts in FL though, its been in the 90's lately.
Did you get the FRPP tuner yet?
Also I dont let the pumps prime I just turn it over. Dont get many cold starts in FL though, its been in the 90's lately.
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