follow up: flywheel still rattles

[garyhugo]

Replaced dual mass flywheel and clutch, Still rattled. Code 44(LH O2 sensor,lean) Replaced O2 sensor,because it was easy,and sometimes it idled smooth sometimes it idled rough ,Still rattling.SO I took it to my southeast ZR-1 specialist.He removed the plennm cleaned all the injectors checked the wires and coils put it back together and it did the same thing.Off with the plenuum again.bench tested the injectors,checked compression(191-201)and then was able to determine that the NO #7 cylinder wasn't fireing all the time.He then found a broken wire 6 inches up the harness that was making contact intermittently.No rattle and the car runs like a scalded dog.Big time Thank You to Aaron Scott of SGC.

[Dynomite]

He then found a broken wire 6 inches up the harness that was making contact intermittently.No rattle and the car runs like a scalded dog.Big time Thank You to Aaron Scott of SGC.

Just have to ask....where and what exactly was this wire 6 inches up the harness?

[GOLDCYLON]

Just have to ask....where and what exactly was this wire 6 inches up the harness?


Im assuming the fuel rail harness... Id imagine they get crispy over time.

[Dynomite]

Im assuming the fuel rail harness... Id imagine they get crispy over time.

Oh......you saying a primary injector was not firing vice spark?

Daryll.....got wheels balanced this morning with those new brakes......120mph and no vibration...just have to watch for Combines with 24 row corn heads :D

[GOLDCYLON]

Yep perhaps or perchance an intermittent electrical queertron

[garyhugo]

Yea the wire was going to the #7 primary injector. The break was up in the harness about 6 inches where they are all together.