hot start

suprra_girl · 03-15-2006, 02:03 AM

diagnostic?

kewlcoconut · 03-15-2006, 11:41 AM

i havent done a diagnostic. what exactly would it tell me? would it narrow down the possible problems that it could be?
----------Errrrr Edit

brain is a little slow tonight...its like 4am. thought you were talking about running dyno tests...ugh i need sleep haha. i havent done a diagnostic recently because my engine light isnt on. being as stupid as i am, i didnt think of checking it. i will check it out tomorrow afternoon, see if i get a blink or two.

suprra_girl · 03-15-2006, 11:45 AM

it very well may do

kewlcoconut · 03-16-2006, 03:15 AM

well i ran a diagnostic today and nothing showed up. steady blinking light.......

brs86supra · 03-16-2006, 12:43 PM

i tried to do a diagnostic and nothing happened it didnt even blink

brs86supra · 03-16-2006, 12:45 PM

changed my fuel filter and it looked like mud wasnt clean at all

mrnickleye · 03-17-2006, 12:24 AM

Normally (mostly) a dirty fuel filter will restrict the flow of fuel. So the signs of dirty one one is....the car will start and run OK up till a certain RPM, then it will start cutting out (misfiring). Dirtier ones will not allow the car to get up over a certain speed (like 50mph).

So the hard start when 'heat soaked' (as it is called) is not the filter.

Dirty injectors, carbon on the intake valves, a fuel system that won't hold the pressure after engine is off, a weak fuel pump (low pressure). These are the areas I'd be looking at if you came into the shop.

Synack · 03-22-2006, 12:30 PM

that happened with my 1993 318is

kewlcoconut · 03-23-2006, 01:14 AM

Quote:

Originally Posted by Synack

that happened with my 1993 318is

can you verify that it was the fuel pump?? or did you never get it fixed?

kewlcoconut · 03-23-2006, 09:47 AM

i was browsing supramania forums and came across this thread.

http://www.supramania.com/forums/showthread.php?t=15243
wtf connections are these?(pics)
"I am just wondering what these two connections are and what exactly they do.

The first two pictures are a plug that was cracked during the headgasket change. It connects two pieces of vaccume line under the intake manifold."

Quote from JonoTurbo
"First two pics are the fuel pressure regulator vsv, you definitely want to fix that."

Quote from Red Dragon
"AFAIK, Fuel VSV is for hot starts to combatr heat soak, so if your car starts fine w/o it when hot then you are good to go. I don't have mine on there either"

--------
The second quote struck me the most, I am going to check my car to see if that brown plug is connected to anything. If it isnt, where should it be connected to??

03-15-2006, 02:03 AM	#1
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	diagnostic? __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

03-15-2006, 11:41 AM	#2
kewlcoconut 3" Exhaust Join Date: Sep 2005 Location: Vancouver, BC Canada Posts: 157	i havent done a diagnostic. what exactly would it tell me? would it narrow down the possible problems that it could be? ----------Errrrr Edit brain is a little slow tonight...its like 4am. thought you were talking about running dyno tests...ugh i need sleep haha. i havent done a diagnostic recently because my engine light isnt on. being as stupid as i am, i didnt think of checking it. i will check it out tomorrow afternoon, see if i get a blink or two. Last edited by kewlcoconut; 03-15-2006 at 11:46 AM.

03-15-2006, 11:45 AM	#3
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	it very well may do __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

03-17-2006, 12:24 AM	#7
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	Normally (mostly) a dirty fuel filter will restrict the flow of fuel. So the signs of dirty one one is....the car will start and run OK up till a certain RPM, then it will start cutting out (misfiring). Dirtier ones will not allow the car to get up over a certain speed (like 50mph). So the hard start when 'heat soaked' (as it is called) is not the filter. Dirty injectors, carbon on the intake valves, a fuel system that won't hold the pressure after engine is off, a weak fuel pump (low pressure). These are the areas I'd be looking at if you came into the shop. __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08.

03-23-2006, 09:47 AM	#10
kewlcoconut 3" Exhaust Join Date: Sep 2005 Location: Vancouver, BC Canada Posts: 157	i was browsing supramania forums and came across this thread. http://www.supramania.com/forums/showthread.php?t=15243 wtf connections are these?(pics) "I am just wondering what these two connections are and what exactly they do. The first two pictures are a plug that was cracked during the headgasket change. It connects two pieces of vaccume line under the intake manifold." Quote from JonoTurbo "First two pics are the fuel pressure regulator vsv, you definitely want to fix that." Quote from Red Dragon "AFAIK, Fuel VSV is for hot starts to combatr heat soak, so if your car starts fine w/o it when hot then you are good to go. I don't have mine on there either" -------- The second quote struck me the most, I am going to check my car to see if that brown plug is connected to anything. If it isnt, where should it be connected to?? Last edited by kewlcoconut; 03-23-2006 at 09:51 AM.

03-16-2006, 03:15 AM	#4
kewlcoconut 3" Exhaust Join Date: Sep 2005 Location: Vancouver, BC Canada Posts: 157	well i ran a diagnostic today and nothing showed up. steady blinking light.......

03-16-2006, 12:43 PM	#5
brs86supra 3" Exhaust Join Date: Feb 2006 Location: suffolk, virginia Posts: 65	i tried to do a diagnostic and nothing happened it didnt even blink

03-16-2006, 12:45 PM	#6
brs86supra 3" Exhaust Join Date: Feb 2006 Location: suffolk, virginia Posts: 65	changed my fuel filter and it looked like mud wasnt clean at all

03-22-2006, 12:30 PM	#8
Synack Stock Join Date: Mar 2006 Location: Houston, Tx Posts: 12	that happened with my 1993 318is

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