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b18b into 94 hatch high idle and no bottom end power

PostPosted: Sat Jan 10, 2009 6:40 am
by Tacorunner87
i got a high idle checked timing and its right now, checked vacuum lines nothing there unless i have a line in a wrong position anyone have a diagram for vacuum lines? i think it may also be which ill have to check when i get home is idle control valve may be dirty or leak but i think if it had a leak coolent would leak. but confused one the no bottom end, checked the plugs to see if there faulled but were fine. changed fuel filter, air filter, still no bottom end power but once rpms rise got tons of power. put 91 octane thinking fuel was bad in the tank since car sat for about 6-7 weeks at 1/4 tanks. still no power. any other thoughts?

PostPosted: Sat Jan 10, 2009 10:01 pm
by Civic Servient
Sounds like a V-tec thing. I don't have a V-tec motor so I can't say for sure. It sounds like its always on and not returning to its low rpm mode. I could be totaly wrong, but if I am, I'm sure It will get every one fired up and they will correct me soon. With that in mind "I'm 100% sure it's your left turn signal bulb!" :thumb:

PostPosted: Sun Jan 11, 2009 5:12 am
by Tacorunner87
lol, sorry im non v-tec totally understand what your saying about it having a computer glitch kinda thing.


bump
just looking for things to look into to fix my issues

PostPosted: Sun Jan 11, 2009 5:17 am
by blockustomz
sounds like vacum leak.. is there a check engine light on? is the colant full, or dirty? what motor you have and what mods does it have.

PostPosted: Sun Jan 11, 2009 5:28 am
by Tacorunner87
blockustomz wrote:sounds like vacum leak.. is there a check engine light on? is the colant full, or dirty? what motor you have and what mods does it have.


i have no check engine light, coolent is full and new, motor is a b18b from a 95 ls i dont have any mods. stock intake manifold and exhaust manifold.
anyone have a vacuum diagram for this motor in a civic?

PostPosted: Sun Jan 11, 2009 8:37 pm
by Tacorunner87
i changed injectors, cleaned and sealed idle control sensor, changed fuel filter, air filter, checked vacuum lines, checked to see if sensors were plugged in. still got high idle and no bottom end.

PostPosted: Tue Jan 13, 2009 9:37 pm
by egsedanguy
well i dont know all the spec and how the motor works. but how did the motor run befor you put it in? have you done a compression test? mabey pison rings are shot? i dont know but those might be some thing i would check.

PostPosted: Sun Jan 18, 2009 10:04 pm
by Tacorunner87
i bought the motor from a shop, the guy at the shop put a new timing belt, waterpump, headgasket, and just went through it.

PostPosted: Wed Jan 28, 2009 4:47 pm
by boosted94
Im gonna go with a vaccum leak, manifold gaskets tb gasket. make sure all your vaccum lines are attached on the mani and hooked up at their destination not just a loose line laying where you can only see one end. check your wiring diagram to see if you have the map and tps hooked up properly they use the same style connector and ive been caught with them bakwards more than once.

PostPosted: Fri Jan 30, 2009 5:32 am
by Tacorunner87
tried map sensor and tps plugs backwards, thats not it but i did discover when i did that car ran like crap. but i did not get a check engine light. and theres also 2 plugs on the intake manifold air temp and purge cut solenoid and that didnt give me a check engine light. so my question is does that jumper have to be jumped for me to get a check engine light?

PostPosted: Fri Jan 30, 2009 7:52 am
by chrono404
This is a common problems on our older hondas. In the IACV a little plastic ring backs out over time. I had the exact same problem with my D16z6. Fixed the IACV and BAM! no more problems. I am surprised this was not brought up eariler.

Link to DIY Fix. :thumb:

PostPosted: Fri Jan 30, 2009 2:27 pm
by Tacorunner87
is the iacv the one on the back of the intake manifold had 2 houses and a electronic plug?

PostPosted: Sat Jan 31, 2009 4:45 am
by chrono404
Believe so, Its been a while since I cleaned and tightened mine.

PostPosted: Sat Jan 31, 2009 8:19 pm
by Tacorunner87
i ordered an iacv off ebay. do to that fact there 2 expensive at the autoparts store and im going out of town for a week and it should be here when i get back. when i had the ignition on but engine not running i heard a hmmm sound coming from the sensor. we will find out if that fixes the issue when i get back next weekend

PostPosted: Tue Feb 03, 2009 4:25 pm
by boosted94
My question to you is did you even take the old one off and check it using his DIY before jumping conclusions and buying a new one? seems like a simple fix, spending little to no cash.