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Old 02-01-2013, 10:02 PM   #1
GF8STILimited
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Member#: 345662
Join Date: Feb 2013
Default some problem encountered after head gasket replacement

i was replaced head gasket on 1998 sti engine, and then all is fine and the idling is good ,engine is steady when i start the car, it can run to 6000 RPM and 1,1bar boosted in the road testing , but i encountered the problem in the next day test drive, it was running not smoothly when the car accelerate to 140 km/h , and the engine check warning light is on in that moment, after that i drive back to garage and open the hood ,
i saw the engine and the idling is not steady,,,anybody have similar case?

the engine has beem stalled if i remove the air flow sensor when the engine is not steady.
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Old 02-01-2013, 11:02 PM   #2
i_c_the_light
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Member#: 88618
Join Date: Jun 2005
Chapter/Region: SCIC
Location: New Zealand
Vehicle:
1994 Legacy
"The Silver Slug"

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What codes is it giving you?
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Old 02-01-2013, 11:53 PM   #3
GF8STILimited
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Default

Um...i cannot check the code becoz the check engine light just switched on in a short time,,


and i keep in 3500-4000 rpm in nature gear, the light on again in short time, and i can hear a little bit back fire in this period.
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Old 02-02-2013, 02:00 AM   #4
cmk82600
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Member#: 248305
Join Date: Jun 2010
Location: Minnesota
Vehicle:
97 OBS
my custom mixed silver

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Take it to a shop and have them connect to it with their scanner they can read codes even if you can't.
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Old 02-02-2013, 03:31 AM   #5
GF8STILimited
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are there have a plug under steering wheel for checking the error code?
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Old 02-02-2013, 03:34 AM   #6
lavid2002
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Join Date: Oct 2009
Location: southern NJ
Vehicle:
2005 PSM WRX
18.5lb. 93 oct, DP, UP

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Yeah there's an OBD2 port for a plug where the drivers knees are for the OBD2 scanner.

Any vacuum leaks?

All the sensors hooked up?

Throttle cables good?

IACV hooked up properly?
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Old 02-02-2013, 04:13 AM   #7
i_c_the_light
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Location: New Zealand
Vehicle:
1994 Legacy
"The Silver Slug"

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Quote:
Originally Posted by lavid2002 View Post
Yeah there's an OBD2 port for a plug where the drivers knees are for the OBD2 scanner.

Any vacuum leaks?

All the sensors hooked up?

Throttle cables good?

IACV hooked up properly?
It's not ODBII though so codes are read old skool styles.
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Old 02-02-2013, 04:53 AM   #8
cmk82600
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Location: Minnesota
Vehicle:
97 OBS
my custom mixed silver

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Every vehicle built from 1996 and on is OBDII.
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Old 02-02-2013, 12:28 PM   #9
sc00by4life
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Chapter/Region: NWIC
Location: Bothell
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Quote:
Originally Posted by cmk82600 View Post
Every vehicle built from 1996 and on is OBDII.
Only for the US market.....
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