I have a 92 legacy wagon, it has almost no power and strugles to get to 3000 rpm, worse cold. it has 30-40 psi fuel pressure, spark plugs and fuel filter are
new. It has no codes. I disconnected the air flow senor and and it ran better. I replaced the maf with a new one from subaru. The car ran great for 4 days and
then started to run poorly again. I have also cleaned the fuel injectors with a professional injector cleaner kit. from 3000rpm up it seems to run normal.
Any help would be great.
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Guest Message by DevFuse
92 legacy lack power hard start worse cold
Started by
05mustang
, Mar 20 2005 09:15 PM
2 replies to this topic
#2
Legacy777
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- Moderator
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Moderator
- Houston, Tx
Posted 21 March 2005 - 08:40 AM
Hmmm.
So it's worse when it's cold?
Might be the coolant temp sensor, but the symptoms your experiencing are pretty severe for the coolant temp sensor. It's a $20 item though, so it might be worth the money to eliminate it.
Have you tried running d-check mode? It's a more "active" diagnostic method. Instructions are on my site.
other possibility is that the ECU is not working properly.
So it's worse when it's cold?
Might be the coolant temp sensor, but the symptoms your experiencing are pretty severe for the coolant temp sensor. It's a $20 item though, so it might be worth the money to eliminate it.
Have you tried running d-check mode? It's a more "active" diagnostic method. Instructions are on my site.
other possibility is that the ECU is not working properly.
#3
05mustang
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- Members
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New User
- portland
Posted 21 March 2005 - 11:57 AM
i have tried the active diag mode and it passes.
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