kylekizmann

it's a 98 d16y8 in a 89 stumbles on acceleration and on Highway only doesn't stumble if I give her lots of gas past 2 3/4 rpm. Standard new plugs wires cap. 180 compression on all 4 cylinders.

Former User

What ECU? Post the CEL codes.

eghatch9295

iTrader: (1)

wrong forum. originally dpfi pr mpfi car? what ecu? what distributor?

Former User

Let's wait to see what ECU the OP is running.

Mmac

May be an intermittent fuel injector. Listen to them with stethoscope while idling. If one sounds a little weaker keep listening to that one for a pause in the pulsing. Engine will confirm your finding. It can be very elusive but my 2000 dx had similar symptoms. Ran great at speed but still felt a few light engine "jerks". At idle engine seemed to jump and want to pull the car forward a few inches.

kylekizmann

Sorry for he late reply. The ecu is out of a 95 civic don't know of it has any codes since I can't find the obd port (no clue what the guy before me did when he did the swap) it does happen intermittently sometimes a half hour straight or 5 min and stop for a bit than do it again weird. I took a screw driver to each injector and listened 2 of them sound normal one of them sounds like a ting sorta and the last one sounds like a high pitched ting when it pulsates but it does pulsate could that be the problem?

tony_2018

Its out of a 95, but what ecu is it? Whats the part # on the side of the ecu?

kylekizmann

tony_2018

ok so you have a p28.

kylekizmann

Some sites say that a d16y8 needs a p2p ecu and I have a p28 is that true? If so would it cause the car to not run properly?