[Mk2] [NA] Rev 3 engine issues- dizzy exploded, replaced, not running right

[str160]

Hi all.

96 MR2. UK car.

Had the rotor arm grenade itself and the cap. I didn't know what had happened and turned it over a few times out of frustration.

So, replaced cap and rotor arm.

The issue now is that it starts really bad if left a while, and doesn't rev past 4.5k, and up to that point it flat as....

The timing is spot on, this has been checked and confirmed.

Please please provide any ideas.

Thanks

[mr2matt]

Have you checked for error codes?

And have you reset the ecu? As it sounds like it's in 'limp' mode, which might have been activated by your dizzy exploding.

[str160]

Error codes are an issue. The check engine light just flashes with a paper clip in the SST location.

All plugs have good spark.

Just checking cambelt now.

[str160]

Further-

Cam and ignition timing are spot on. Had a play with ingition timing a bit and start up is still an issue, but has improved, but there is still a mass load of hesitation around 4500rpm. Like it's flooding/holding back.

No fault codes are displayed though as I said, the light just flashes with the SST/paperclip in place.

Really getting desperate now.

[str160]

I had a suspicion. I remember looking under the back end when the dizzy blew and the cat was steaming hot.

So I took the exhaust off just now. It runs and revs free as you like. I mean really good. So problem found.

And now my car sounds like a super 2000 race car. I'm never fitting an exhaust again.