[99shlude2021]

So I’m buying my managers prelude, it’s a 99 with 95,xxx miles on it, has a small turbo running 8 lbs, car is running on s200, was put together probably 13+ years ago and hasn’t really been touched since. He put a manual belt tensioner in and did the belt recently he told me. Car recently wasn’t running, put a new IAC on, plugs and wires and got it to fire but is running with a miss. He put a jdm distributor on in recent times and I’m wondering if this is the culprit. Car seems to be Uber rich, am thinking it needs a retune, maybe s300 and the coil conversion?

 

[Wing8806]

Hard to say with an already modified car.

Knowing it's now obd1, i'd imagine the EGR system is no longer in use, which takes out my first thought on it.

grounds, injectors, fuel pressure, cap/rotor - all things to check first. As for running rich, have a tuner check that over.

You're on the right path.

 

[mrprelude1997]

im lost with the s200 s300 obdi...does it miss under full load? i think people blame ignition alot but if its an idle problem it may not be...idling is easy (kinda)