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07-10-2012, 01:13 PM | #1 |
Scooby Newbie
Member#: 285495
Join Date: Jun 2011
Location: Wappingers Falls, NY
Vehicle:2004 WRX WRB |
Car won't start when hot
Hey guys, I have a 94 Impreza L with a V2 STI swap. I recently got it off another member and about a month ago it started giving me an issue where the car will start and run perfectly fine, and then if I turn the car off and try to start it 10 minutes later it wont start, but if I wait about an hour it'll start up no problem. Any ideas?
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07-10-2012, 01:32 PM | #2 | |
n00b Moderator
Moderator Member#: 811
Join Date: Jan 2000
Location: WA
Vehicle:2000 RS-Ej20G It tastes like burning |
Quote:
-Rob |
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07-10-2012, 01:45 PM | #3 |
Scooby Newbie
Member#: 285495
Join Date: Jun 2011
Location: Wappingers Falls, NY
Vehicle:2004 WRX WRB |
Thanks man, I'll check it out
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07-11-2012, 02:22 PM | #4 | |
Scooby Newbie
Member#: 257043
Join Date: Sep 2010
Chapter/Region:
VIC
Location: Vancouver BC
Vehicle:1993 JDM WRX Wagon Black |
Quote:
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07-11-2012, 06:40 PM | #5 |
Scooby Newbie
Member#: 285495
Join Date: Jun 2011
Location: Wappingers Falls, NY
Vehicle:2004 WRX WRB |
It will turn over, but it won't actually start. Was that your issue as well?
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09-09-2012, 02:33 PM | #6 |
Scooby Newbie
Member#: 99205
Join Date: Oct 2005
Chapter/Region:
MAIC
Location: La Plata, MD
Vehicle:2005 Impreza WRX Blue |
My car is having the same problem I have a 2005 wrx with a 2.5 big valve head long
block from element tuning with hydra em Phil cant figure out whats wrong I am thinking about taking the car to someone else I am located in MD. I need this problem fixed I have too much money invested in my car for this problem. Phil once thought it was the engine not seeing enough fuel so he maxed out the signal going to the injectors. Cole |
09-09-2012, 06:09 PM | #7 |
Scooby Guru
Member#: 88618
Join Date: Jun 2005
Chapter/Region:
SCIC
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Oh oh oh. Coolant temperature sensor malfunction can cause hot start problems.
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09-09-2012, 10:06 PM | #8 |
Scooby Newbie
Member#: 99205
Join Date: Oct 2005
Chapter/Region:
MAIC
Location: La Plata, MD
Vehicle:2005 Impreza WRX Blue |
That's possible do I have to buy that sensor at subaru?
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09-09-2012, 10:33 PM | #9 |
Scooby Specialist
Member#: 123362
Join Date: Aug 2006
Chapter/Region:
MWSOC
Location: Dorothy's House
Vehicle:'97 E36 M3 351W FTW |
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09-10-2012, 12:39 AM | #10 |
Scooby Specialist
Member#: 284101
Join Date: May 2011
Chapter/Region:
Tri-State
Location: Hawthorne, NJ
Vehicle:2004 STI world rally blue |
I have a similar issue with my built 2.0l. Cold starts are fine. Once I shut the car off (getting gas or something) and start it back up, it'll want to die out but if I give it just a bit of gas, it's fine and idles perfectly normal.
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09-10-2012, 05:57 PM | #11 |
Scooby Newbie
Member#: 99205
Join Date: Oct 2005
Chapter/Region:
MAIC
Location: La Plata, MD
Vehicle:2005 Impreza WRX Blue |
I am going to try to check the coolant sensor with a muti-meter and check the Ohms Does anyone know what the sensor should read normally?
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09-10-2012, 06:01 PM | #12 |
Scooby Specialist
Member#: 206851
Join Date: Mar 2009
Chapter/Region:
MWSOC
Vehicle:56 Belair Pro Street |
my 94 RA engine I just bought would almost not start once up to temp. The ect/iacv/crank/cam sensors were all clean or brand new.
Then of course it spun a bearing after 80miles so I have no idea what it was.. After doing some digging into the ecu rom, I think it is our ****ty fuel enrichment/cranking fuel/temp based enrichment that does this. If I have some spare time I will try to test a rom once I have a G powered car. |
09-12-2012, 11:32 PM | #13 |
Scooby Specialist
Member#: 44472
Join Date: Sep 2003
Chapter/Region:
NWIC
Location: Bellingham, WA
Vehicle:Ver2 Legacy StiRA 88 RX, 87 RX, 07 FXT |
I had this problem for a long time. it was the cam sensor. It takes only 1 minute to change.
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06-27-2017, 07:42 PM | #14 |
Scooby Newbie
Member#: 470031
Join Date: Jun 2017
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etidatreyu...did it work? was it the cts or the fuel pump?
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07-05-2017, 12:02 PM | #15 |
*** Banned ***
Member#: 469350
Join Date: Jun 2017
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Well, maybe Crank or Cam position sensors failed due to heat? i can't think of any other solution I even asked a mate from DSRLeasing who is an mechanic.
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