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I am still trying to solve my hard-starting issue.
When I start the car it takes 2-3(or more) seconds
of cranking before it starts.
This is the same when the car is hot/warm.
So far I have checked/replaced:
plugs OK
HT leads (did Ohm test and cleaned the connections)
coil (did Ohm test) checked wires for 12V
battery NEW
rotor NEW
cap NEW
replaced vacuum lines and checked with carb cleaner
for leaks
fuel filter NEW
fuel pressure stays 3.0bar after engine off (this rules out any check valves)
pressure is 4 to 4.5 (if I remember correctly) at idle
measured O2 sensor (just in case)
cleaned throttle and AIC multiple times
U-sonic cleaned the injectors
cold start valve NEW (other one was broke)
cleaned all the grounds in engine bay
did the AMM burn off test OK
Temp NTC cold / warm OK
Additional sealed all the vac nipples with silicon
I have discoverd following. If I wire a resitor to the
NTC wires faking a 5C temp... the car starts on first
crank but has a crappy idle (too rich).
Or
If I crank for 1-2 secs stop and restart it jumps right
on (idle OK). So this must be some lean/too much air issue, right?
Idle is OK (i guess 900) but varies slightly.. drops, lets say, 50 rpm
Tach bounces while cranking
No CE lights
Dealer says that 2-3 secs of cranking is normal for a
'92 900 (non-T). Tracing it down would be $$$-labor they say
and perhaps not worth it.
But a warm car should start right up, right?
Unfortunately I don't have spare expensive parts to simply swap and test ECU etc.
My previous '89 900c started right up... why won't this one?
Am I fixing something that ain't broke or overlooking something??
It runs great though!!
Big SAAB fan
Emil
(Netherlands)
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