Which computerfor a efi
Posted 07 January 2015 - 01:32 PM
Posted 07 January 2015 - 07:28 PM
Posted 07 January 2015 - 07:39 PM
D Sart Enrichment circuit is staying on, this is a single nozzle in the main lg plenum, just behind the T/B.
Sometimes just pulling it out, giving it a tap, squirting a little WD40 nto the fine nozzle hole, and down into fuel feed hole, can loosen it, f stuck.
Even disconnect/reconnect the wire plug to it can be enough.
At more that dle, there is enough fuel/air going through to not be affected by the small amount out of the CSEV.
Therewere quite a number of variations of the factory ECU's, i have four different numbered units, internally they look similar, but there are fine differences with certain components.
Best one i have found s the unit from a zxTurbo, it haps a second PCB, which I have utilised for different gnition and fuel delvery at hgher rpm's.
Posted 08 January 2015 - 10:26 AM
Posted 08 January 2015 - 11:55 AM
By carefull when trying to tighten up lines further. The hoses have had some 25 years to "set".
That little enrichment nzzle, only comes in when engine coolant temp is low, for its so
Enoud to pull back, and release fuel, it needs to be earthed to the manfopd.
If its not spurting fuel, on hot engine temp, if earthed, it s ok.
Fit it, connect it, do the hard accelerate thing, still black smoke?
Now disconnect it, try hard accel, still black smoke? ( is air filter newish? An old blcked airfilter acts a bit like a choke)
It could be that the injectors may be larger size, but that would show all through rev range
On hard accel, the signal that gets sent to injects, badically says 100% duty cycle boys, via the Throttle position sensor, bolted on side of the T/B, but the major problem is, insufficient volume of airflow into intake relative to qty of fuel being dumped in on wide open throttle from idle.
Bit like triple Weber carbs, tromp on those, and she dies, goes burbur bur burburbur, then whoar!
Posted 08 January 2015 - 04:26 PM
Posted 10 January 2015 - 04:01 PM
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