TeGGeR® wrote:
> Matt Ion <soundy@moltenimage.com> wrote in
> newsUzEg.405746$iF6.393198@pd7tw2no:
>
>> Okay, just helped a buddy swap a new engine core (block and head -
>> D15B2, if memory serves) into an '88 Civic with dual-point PGM-FI.
>> Kept the original intake and throttle body, all wiring appears to be
>> back where it belongs. Engine was running before, but there was a big
>> nasty crack down the block right behind the #4 cylinder.
>>
>> We're getting spark and compression, but no fuel into the cylinders -
>> plugs come out completely dry even after much cranking. Fuel pump is
>> working, and there's lots of pressure both before and after the
>> forward fuel filter. Haven't checked where the fuel line bolts to the
>> throttle body, but I don't expect there's a problem there either.
>>
>> I'm guessing something is preventing the injectors from working
>> (again, this is the same intake and throttle body that was in the car
>> and working previously). Didn't have any time to troubleshoot it
>> tonight, so we're back at it tomorrow evening, so I thought I'd ask
>> here for some pointers on where to check, what to test, how to
>> determine where the problem may lie - any wires to check for signal
>> or voltage, that sort of thing.
>>
>
>
> Does the Check Engine light come on for two seconds when the key is
> first turned to "II", then go off again?
>
> Any codes stored in the ECU?
>
> Did you reconnect the ECU ground at the thermostat?
>
> At the bottom injector, find out which of the two wires is "hot" with
> the key at "II" (the other one is grounded by the ECU when it wants the
> injector to turn on).

The connector will need to be removed to do this since if the ECU is not
actively grounding the ground side, the voltage applied to the 'hot' side
will appear at the 'cold' side as well if still connected to the injector.

> Remove the connector, and carefully hook up a
> temporary connection from the hot wire to the hot side of the injector,
> then ground the other side of the injector to the block or some body
> ground. Does the injector now spray fuel?


--
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