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Greek Mod
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Discussion Starter · #1 ·
i swapped out my b234i for a b204r
and now have a rough idle with a vacuum at about 11-13 inHg
cant seem to find any vacuum leaks though
i checked engine timing and everything lined up
plus is seems like im running extremely rich at idle (i think this may be why my idle is rough)
ideas?
(ask me questions to narrow things down)
 

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Is it the same tune? Could be over fueled now with the smaller displacement...
 

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start the car and unplug the iac if its bad you should notice an improvement
 

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Greek Mod
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Discussion Starter · #12 ·
The 2.3t broke?

Miss a ground wire on the intake manifold? IAC won't influence mixture.
nope, it didnt break
i reached a power ceiling on that setup and didnt want to invest anymore money since the b204 is much much easier to work with

in other word i had an itch for more (easy) power

ill check the grounds again to make sure
 

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nope, it didnt break
i reached a power ceiling on that setup and didnt want to invest anymore money since the b204 is much much easier to work with

in other word i had an itch for more (easy) power

ill check the grounds again to make sure
You had a turbo manifold on it? Turbo cams would have helped some or different cam timing with stock 2.3i cams.
 

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Greek Mod
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Discussion Starter · #14 · (Edited)
i was very impressed with how the car performed plus i never had a chance to dyno it with the td04 on it but i would guess around the 230whp ball park

its just that i wanted to get into something that would cost "less" to upgrade to get it to 300hp
 

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There are power grounds and signal grounds. If you leave the signal ground floating this will bias the sensors. The power ground would make it hard for the injectors etc to function. ;) Check the signal ground.
OK, that might be the problem with my project car then. I know the engine was replaced at a certain point so that might be a definite possibility :D

Where would that ground be exactly Nick???
 

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Greek Mod
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Discussion Starter · #16 ·
ok so here's the latest

my car still wont idle right
vac is at 11 in.Hg
on decel i barely hit 21 in.Hg so my car doesnt decel as it should when off the throttle


tech2 readings

at idle
tps is at 10.2%
timing at 3* (this is supposed to be at bout 10* right?)
and O2 reading all over the place


plugs look like things are running rich
 

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I think timing should be around 6-8 degrees.
 

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rattle

I removed the insolation from under my hood and added a blowoff valve at the same time. About that time i started getting a rattle noise only audible from the inside of the car. Im new to saabs and hope this is related any ideas what it might be?
 
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