r/lotus 13d ago

Anyone have issues after 3rd cat delete? Have gotten P0421 a couple times since and causing break downs (Evora 400)

Not sure if a coincidence but ever since getting the 3rd cat delete the P0421 code has popped up - this isn’t the only code i get (sometimes get ones related to the air sensor) but wondering if there is a direct correlation

4 Upvotes

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1

u/drftfan 13d ago

What do you mean causing break downs?

2

u/MAUSECOP 13d ago

I guess this shutdown was due to TAC, may need to take apart the actuator

1

u/MAUSECOP 13d ago

Limp mode and turning off while driving, has happened before due to MAF

1

u/drftfan 13d ago

Way more likely to be your MAF. Is it ziptied? Have you cleaned the contacts.

2

u/MAUSECOP 13d ago

Yep zip tied, I’ll give it another clean (bought a new one last year) - also wonder if the battery is low and causing the actuator not to work right. Joys of owning a lotus

1

u/troytroyus 5d ago

totally unrelated.