Pulsing Idle problem & Starting air valve
07-14-2007, 08:34 AM
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Location: houston, tx, usa
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Pulsing Idle problem & Starting air valve
I have a 93 Accord 4 cyl. It started the pulsing-Idle in park/neutral and high-idle in drive problem.
I've read the relative posts in this forum and cleaned my IACV and FITV (screwed down the FITV too)
Did not fix.
I have a "Starting Air Valve" on the other end of my intake manifold which is connected via vacuum hose to the air filter intake duct. While engine running I plugged the hose and released it...which brought the idle back to normal...until the engine rpm was increased again...then the pulsing would start again.
I can't find any information on the Starting Air Valve. it looks to be a vacuum actuated diaphram valve with spring that the vacuum has to overcome to actuate it.
Does anyone know what it does or if it is necessary...as I pulled the spring out of it and my car seems to idle fine now.
Thanks
I've read the relative posts in this forum and cleaned my IACV and FITV (screwed down the FITV too)
Did not fix.
I have a "Starting Air Valve" on the other end of my intake manifold which is connected via vacuum hose to the air filter intake duct. While engine running I plugged the hose and released it...which brought the idle back to normal...until the engine rpm was increased again...then the pulsing would start again.
I can't find any information on the Starting Air Valve. it looks to be a vacuum actuated diaphram valve with spring that the vacuum has to overcome to actuate it.
Does anyone know what it does or if it is necessary...as I pulled the spring out of it and my car seems to idle fine now.
Thanks
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