[Hankaroo]

Joined just a few months ago when I attempted to salvage the trust old EXL that my young daughter destroyed. While looking for parts cars I found a clean low mileage parts car that only needed a head gasket. Easy decision. Hope it was the right one.

Ripped it down and found a warped head. It was about 0.004 cupped and I had it machined 0.007.

After 2 weeks of (mostly) following the Honda manual I have a sweet sounding engine with great compression. BUT I never did the CKP Pattern Learn or Clear commands. CEL is on etc etc.

How tough is this to do? I replaced a few sensors with aftermarket but the chain is OEM.

What kind of scanner do I need? Would a shade tree place likely be able to help? Or do I need the dealer?

Thanks

 

[Reorge]

From a 2007-2012 CRV service manaul page 11-5.

(CKP) Pattern Learn Procedure (without the HDS)
1. Start the engine. Hold the engine speed at
3,000 rpm without load (in Park or neutral) until the
radiator fan comes on.
2. Test-drive the vehicle on a level road: Decelerate
(with the throttle fully closed) from an engine speed
of 2,500 rpm down to 1,000 rpm with the A/T in 2 position, or M/T in 1st gear.
3. Repeat step 2 several times.
4. Turn the ignition switch OFF.
5. Turn the ignition switch ON (II) and wait 30 seconds.
The crank (CKP) pattern learn procedure is complete.

 

[Hankaroo]

Frustrating. I’ve done this test now at 4 times in as many days.

First I repeated the step#2 4 times then later 7 or eight times. I was real careful with all details of RPM and gear selection but still CEL and P0335. By the way there’s a definite soft spot in the tach at exectly 3000 rpm so I try and hold as close as possible to 3000. Any higher and the engine surges so I try to hold 2990 rpm. That should not matter should it?

I bought a scanner called BlueDriver. Any chance that’ll make it any easier? Can’t take it to the stealership because it’s not tagged and insured yet. Thanks.

 

[Tron3107]

Did you not clear any codes prior to initial startup?
If not I would start over with disconnecting the battery for a few minutes, reconnect it and turn the key on engine off and clear any stored codes.

Are you sure it’s not the sensor itself or wiring? You said there is a flat spot at around 3k.
There should be a procedure in the SM to test it.

 

[Hankaroo]

Tron3107 you’re right on the money.

funny to think the hardest part of repairing a warped head was important step of sensor blessing

thanks again to Reorge too

 

[Tron3107]

No problem, hopefully you get it sorted out. When you do that amount of repair work the simplest things get eliminated because “it couldn’t possibly be that” 🤣🤣.. been there done that..
Nothing like bringing a vehicle back that can be reasonably be brought back to life. My wife hates it when I do it but it’s rewarding and fulfilling knowing you resurrected a “dead vehicle”!

 

[Wildcat]

When I reassembled the Civic, it took several seconds to get it started, and if I tried to rev it somewhere above 3,000 RPM (or maybe 3,500), the engine would "surge" and not rev any higher. It was a bent pin in the cam position sensor. It showed up in the scanner. I was about to replace the sensor when I took a look and noticed one of the sensor pins was bent. Straightened it out and it's running fine.