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Engine running bad during worming up period
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07-18-2005, 11:32 AM
Post: #1
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Engine running bad during worming up period
Engine is running bad during worming up period only when I press throttle pedal, engine almost stalls. After it arrives at to normal temperature, everything is OK, but during this first 5 minutes it’s almost impossible to drive.
So far I tried to: Replace water temp. sensor, Put new sparks and spark plug wires, Bought new ignition cap, Changed air filter, Set up TPS correctly, Set ignition timing to 10 (while shortcut connector)… Any other suggestion? What to try next? Fun is not the straight line! |
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07-18-2005, 11:40 AM
Post: #2
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Engine running bad during worming up period
max,
is your car idling high enough during startup? Needs to be pretty high rpm idle for it to warm up properly or it will stall.. Still from your list I'm sure you checked that one already... Greetz, Bastiaan "mux213" Olij Moved down under, no more hachi 
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07-18-2005, 11:53 AM
Post: #3
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Engine running bad during worming up period
mux213 Wrote:max, Yes, it runs on 1500rpm, during cold start, smoothly. No problem of that. Problem starts when I press throttle pedal during this worm-up period. Fun is not the straight line! |
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07-18-2005, 02:23 PM
Post: #4
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Engine running bad during worming up period
If it's MAP engine - check carefully (also at the back side) and replace vacuum hose to the MAP sensor.
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07-18-2005, 03:30 PM
Post: #5
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Engine running bad during worming up period
jamiemirror Wrote:If it's MAP engine - check carefully (also at the back side) and replace vacuum hose to the MAP sensor. I have AFM. Fun is not the straight line! |
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07-18-2005, 03:58 PM
Post: #6
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Engine running bad during worming up period
Then you probably also have an oxygen sensor in your exhaust...replace or clean that one as well..
FABRICA MI DIEM, PVNC! |
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07-18-2005, 08:19 PM
Post: #7
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Engine running bad during worming up period
..... standard 4age runs around 1900-2100 rpm idle so you miss 1500 ???? hows the fuel for idle rpm set?
Cars: "99 Lexus IS200 "86 AE86 Kouki Panda Levin GT-Apex (restore project) "84 AE86 Zenki Blue Levin (project racer) Motorcycles: "02 Yamaha R1 "02 Honda Hornet S "08 BMW R1200GS |
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07-18-2005, 08:46 PM
Post: #8
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Engine running bad during worming up period
Have you checked the air regulator? (or air valve) I had a similar problem on the silvia, it turned out to be that.
still no 86 ________________________ |
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07-19-2005, 09:12 AM
Post: #9
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Engine running bad during worming up period
Ivan141 Wrote:Then you probably also have an oxygen sensor in your exhaust...replace or clean that one as well.. I try to disconnect oxygen sensor, but it doesn’t seams to change anything. Cold engine is running at 1500-1800rpm in summer time, so it’s not the problem of throttle either. I also found some sensor from the back of engine (engine is swapped from fwd AE92) connected with two vacuum hoses, I’m not sure what’s the function of this sensor, but it has to do something with temperature as well. Air valve?! Where is location of air valve? Fun is not the straight line! |
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07-19-2005, 10:42 AM
Post: #10
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Engine running bad during worming up period
Air valve will be on the throttle body, it raises the idle speed when the engine is cold, if its not working properly it could be your problem.
still no 86 ________________________ |
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