Honda Civic Performance - JDM Discussion Engine tech, forced induction, springs, shocks, brakes, tires, etc.

Tech people. I need help!

Old 25-Aug-2007, 11:30 PM
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Tech people. I need help!

I have completed a motor swap but now my car is running like a bag of A$$... the motor is a D16A vtec ( JDM 1995 integra 1600cc) the CDM version is a D16Z6 (same water pump timming belt, gaskets and so on) and the ecu is a virgin p28. The code Im getting is 21 disconnected VTEC silenoid.

My question is that when I connect the Vtec will the car run better? it run really bad until 4000 RPM after this point is start to pull.
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Old 26-Aug-2007, 02:23 AM
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current flow.
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Old 27-Aug-2007, 02:01 AM
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the other problem has been fixed the above is a new one.
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Old 27-Aug-2007, 02:16 AM
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since when did integras come with single slammers
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Old 27-Aug-2007, 02:49 AM
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only in J land... look it up D16A vtec. i even have a DC motor mount on the thing.
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Old 27-Aug-2007, 11:58 PM
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ok the vtec is hooked up. the code went away but it still runs horribly.
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Old 28-Aug-2007, 12:08 AM
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well i stand corrected, didnt know tegs had sohc..
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Old 28-Aug-2007, 12:23 AM
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yes they did homie!
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Old 28-Aug-2007, 12:28 AM
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this is so besides the point... how do i fix the timming? do I have to have the computer relearn the timming because I change the belt?
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Old 28-Aug-2007, 12:29 AM
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comes out of the ZXi Integra
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Old 28-Aug-2007, 12:30 AM
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well u need a timing gun to make sure u installed the belt correctly and so u can set the base timing
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Old 28-Aug-2007, 02:19 AM
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ok Ill do the gun thing tommrow I beleive I have some friend that have timming guns. I guess i will be learning something tommrow.
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Old 28-Aug-2007, 09:53 PM
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Originally posted by Midori
this is so besides the point... how do i fix the timming? do I have to have the computer relearn the timming because I change the belt?
Ignition timing and cam timing are completely different. If you didn't touch the distributor your ignition timing was not altered. But sometimes engines come fuct, so its not a bad idea.

Mabye your cam timing is off (need to pull the valve cover and timing cover to check)

If you want I can help ya out.. but im in oakville. Usually driveability issues from swaps are either from ign. timing, wrong ecu or cam timing is off.

g/l
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Old 29-Aug-2007, 12:13 AM
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the wrong ecu and bad ignition timing definately caused poor performance after my swap
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Old 29-Aug-2007, 01:30 AM
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well I advanced the ignition timming by moving the distributor toward the fire wall. It works a little better but it still run bad. from what I understand a P71 is the correct ECU but the motor is identical to a D16Z6 so a p28 should be fine. Im betting it the Cam timming.

Currently it is setup so that the UP is straight up and the two side marks are level with the rocker cover. In the online helms manual it shows the cam on a slight angle / not --.

could I simply slip the belt off of the cam, spin the cam and put the belt back on?

Ugg I think I m going to a shop tommorow.
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