S2000 Under The Hood S2000 Technical and Mechanical discussions.

Vtec not kicking in?

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Old 07-04-2006, 12:24 PM
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LOL, no joke. I just got back from her house and it was half way down the dip stick. I added some to it, let it warm up and drove it. Still didnt help. What now???
Old 07-04-2006, 12:34 PM
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You broke her VTEC system, she will not be happy with that If the car has enough oil, the engine is warm, I think now you will need some expert input...
Old 07-04-2006, 01:03 PM
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I heard something about the vtec solenoid sometimes goes bad and somehow VTEC works off that too. Someone correct me if Im wrong.
Old 07-04-2006, 02:45 PM
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Originally Posted by Ztopgun28,Jul 4 2006, 01:03 PM
I heard something about the vtec solenoid sometimes goes bad and somehow VTEC works off that too. Someone correct me if Im wrong.
the solenoid is what triggers the oil pressure to snap the pins in the roller-rocker cam followers and bind them together, putting the VTEC system on the high cam.

if the solenoid is bad, VTEC won't work.
Old 07-04-2006, 02:46 PM
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1/2 way down the stick is just fine.
OK, oil is good and one should consider that the VTEC pressure switch and solenoid are OK or you would see a CEL. Now, I'm beginning wonder if you are driving the cars the same. Are they both AP1s (or AP2s)? Are you WOT throttle through the VTEC transition stage? Are both cars modded the same way? Is her car in a good state of maintenance? (Clogged air filter? spark plugs OK? What kind of oil? Viscosity? Type?) She's not using that 0W20 some dealers mistakenly put in, is she? How often does she change oil? If she's trying a very long interval, there is a very slight possibility the VTEC oil screen is clogged.

But go drive it again. Warm it up properly and use WOT when you are "testing" VTEC transition. Then again, some S's simply has a more tame VTEC transition but this doesn't mean that VTEC isn't "working".
Old 07-04-2006, 02:46 PM
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I agree, take your solenoid off your car and try it in hers. or at some vtec fluid
Old 07-04-2006, 08:01 PM
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is it pinging off rev limter at 7K or are you just letting off at that RPM?
Old 07-05-2006, 01:46 PM
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Im just letting off at that point, dont see a need to go any higher.
Old 07-05-2006, 01:50 PM
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start at 3 rpms, in 1st gear and WOT, and you don't notice the difference once you get up to 6-7?
Old 07-05-2006, 01:59 PM
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nope not at all


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