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Engine bogging down need help!!!!!!

Engine/Gearbox questions and discussion
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vanzep
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Post by vanzep » Sun Nov 10, 2013 11:36 am

could be a number of things ive had similar issue in the past and there could be a problem with the coolant system as i see you mention that in your profile thread. You can also check connections at the ecu in the footwell as i recently found a loose connection between my vtec controller and the ecu.
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paul72
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Post by paul72 » Sun Nov 10, 2013 11:47 am

Yeah i dont get much heat from heater wen it warms up im waiting for car shop to get the right one as so far theres are too small but i have done a flush but it just seems forever before theremostat opens up as the long bottom hose is always cold
if it aint broken your not driving it hard enough

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vanzep
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Post by vanzep » Sun Nov 10, 2013 11:52 am

Ive had all the same symptoms as you mate - changed rad,rad cap,coolant etc etc - had the bulging top hose changed twice - finally got it sorted by blowing into the rad cap neck and forcing out the coolant thru the bleed nipple - if you dont fancy doing this yourself then some garages have a machine that will do this for you - could just be a blockage somewhere or an air lock. If the top hose bulges then you need to replace this asap. Hope this helps :)

and b4 i forget check the rubber seal on the rad cap
1996-2000 1993 EG9 Blue Civic 1.6 Vti - Traded in against the BB4
2000-2019 1994 2WS BB4 Milano Red JDM Prelude Si VTEC LSD

2015 on > 1991 4WS BB1 Phantom Pearl Grey JDM Prelude Si VTEC LSD
2021 ON > 1998 2WS BB6 White Pearl JDM Prelude Si VTEC

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paul72
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Post by paul72 » Sun Nov 10, 2013 11:54 am

Thanks yeah had that month ago so changed top hose already :lol: why do so many problems happen at the same time
if it aint broken your not driving it hard enough

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vanzep
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Post by vanzep » Sun Nov 10, 2013 11:58 am

just seems to be the way it goes with ludes - stick with it and you will get it all sorted :)
1996-2000 1993 EG9 Blue Civic 1.6 Vti - Traded in against the BB4
2000-2019 1994 2WS BB4 Milano Red JDM Prelude Si VTEC LSD

2015 on > 1991 4WS BB1 Phantom Pearl Grey JDM Prelude Si VTEC LSD
2021 ON > 1998 2WS BB6 White Pearl JDM Prelude Si VTEC

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Post by wurlycorner » Sun Nov 10, 2013 12:13 pm

paul72 wrote:Yeah i did reset ecu and it still does it but im beginging to think thats the only part left to change but i think i will leave it till i get ur exhaust which reminds me to get on to bludge as wanted to come up urs in 2 weeks if thats ok
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Post by Cutz » Thu Nov 14, 2013 5:43 am

check your throttle position sensor mate, get a multimeter and checked voltages at fully closed and wide open throttle.

should be 0.45v @ no throttle & 4.50v @ full wide open throttle - with a smooth transisition between the 2, if the voltage jumps at all as you're slowly opening and closing the throttle then the TPS is the culprit and the ECU cannot work out where the throttle is.

make sure you measure at the ECU and do it the way the service manual states.
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paul72
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Post by paul72 » Fri Nov 15, 2013 7:56 pm

Already replaced that :lol:
I took out thermostat couple days ago as car shop was struggling to get the right one but since its been out car runs perfect except my heater is colder then normal but as a few of you know thats another problem but shud be picking up new thermostat sat morning an some anti freeze as its running just water since i been trying to flush all the crud out :)
if it aint broken your not driving it hard enough

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