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VTEC problem in LS/VTEC 90 CRX

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Old 01-22-2006, 04:40 PM
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Default VTEC problem in LS/VTEC 90 CRX

I just built the engine and fired it up today. The wiring is correct (checked every wire 2-3 times) After it fires off it runs like crap unless you rev it up a little bit. After about 20 seconds it trips the CEL with a code 21 (VTEC Solenoid Valve) after the CEL it makes an intermitent metallic clack (fairly loud and inconsistent) unless I disconnect the psi sw and solenoid. The car runs great otherwise just need to get this figured out.

I pulled the solenoid and the screens are clean.....

Any ideas??

Chipped PR3 ECU, 90 Teg LS Bottom, PR3 Head.

Cj
Old 01-22-2006, 06:54 PM
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Default Re: VTEC problem in LS/VTEC 90 CRX (cjmech)

anyone have an idea?
Old 01-23-2006, 04:50 PM
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Default Re: VTEC problem in LS/VTEC 90 CRX (cjmech)

ttt
Old 01-23-2006, 06:34 PM
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two things i'd check.
a) try a known good vtec solenoid
b) get an oil pressure gauge and see if you're making enough pressure for vtec to work.
Old 01-24-2006, 08:59 PM
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Default Re: (1RMDave)

Figured the problem out tonight. There was a small strand of wire connecting the VTEC solenoid and the #4 injector causing all my problems!!! It was injecting mass amounts of fuel into the #4 cyl so I thought it might have been an injector till I looked at the wiring schematic. Looked at the plug and thanks to a bright *** light I found the wire in the connector.

The wire was from the previous owner and there cheap attempt to make it work by stuffing a bare wire into the hole on the connector. When I pulled the wire out a few of the strands broke off in the connector and stayed there connecting the 2 pins.

Thanks for trying to help out, I appreciate it.

Cj
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