IAA and Air Reg.

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May 30, 201213 yr

Hi people....

Can a TT run without the IAA unit and the Air regulator if all ports are blanked?

Cheers,

Alz.

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May 30, 201213 yr

Personally i would say no, as how would the engine regulate air at idle ?

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May 30, 201213 yr

Author

Wouldn't the ECU compensate for the absence?

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May 30, 201213 yr

Author

Well........... I have removed the Air Regulator and the ol' girls idles, but quite high..... between 1000-1600 rpm, and hunts in-between. I tried 2 A.R.'s and got same results; low idle after warm, and wanting to stall. I am gonna run my 300 without the AR and she how she goes/performs.

Alz.

Quote

May 30, 201213 yr

Well........... I have removed the Air Regulator and the ol' girls idles, but quite high..... between 1000-1600 rpm, and hunts in-between. I tried 2 A.R.'s and got same results; low idle after warm, and wanting to stall. I am gonna run my 300 without the AR and she how she goes/performs.

Alz.

That's the best way to find out mate. Be interesting to see the results.

Quote

May 30, 201213 yr

Author

Will let u know Steams.............

Cheerz,

Alz.

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Simply Japanese at Beaulieu 19th July 2026

I was just completing my booking but realised that it’s one of my daughter’s 16th birthday! I’ll check what she’s up to and see if I can get a pass! She may come with me, but doubtful. Will update as soon as I know.
Steve 😁

By cybernet · 12 hours ago12 hr
Check engine light comes on and off sporadic.

Those codes are all pointing at a related issue. A/F ratio falling out of range, heater elements within the O2's out of temp range, EGR sensor or exhaust gas temp falling out of range, etc. There is a few areas to consider...
Was any work recently done to the car that may have triggered this? When was the last time you replaced the O2 sensors? Check the O2 connectors and wiring to make sure one of them hasn't contacted the exhaust or melted. Any exhaust leaks especially before the cats? When was the last time you performed an induction service and cleaned the intake, TBs, IAC, etc? The EGR and IACV love to get carbon buildup over the years and can affect flow, similarly can happen to the vac lines to the factory wastegate control solenoid. You mentioned the car felt like it was still running well, so no idle RPM fumbling, hanging, stumbling, etc? Are you running an aftermarket boost control solenoid or OEM? Sorry for the load of questions, but need a bit more to go off of to help point you in the right direction.
Even though the vehicle has considerable low mileage, it's still 30 years old. If it's kept in a garage it tends to handle the elements better than sitting out in the external environmental conditions and will need more routine maintenance and care regardless if it's being driven or not. (i.e. 60K / 120k maint w/ timing belt)

By protoj · Tuesday at 18:481 day
JaiKai - MK2 - Ziggy Build

Time to clean the AC parts as i found a birds nest in it.

By JaiKai · Tuesday at 12:042 days
Check engine light comes on and off sporadic.

Hello, I have a 1996 twin turbo manual with 64k miles. I recently started having the check engine light come on sometimes and other times it doesn't. When I checked the codes these are what I got : If anyone has had these same codes what did they change to fix the problem. Car runs fine with check engine light on but want to fix issue. Any help would be greatly appreciated. Thank you.
P0400
P0136
P1150
P1155

By JB300ZXTT · Monday at 22:142 days
UK Importers Advice

Thanks for the recommendations, few different places recommended Gorilla so I will get in touch with them.

By CarmageddonTheMusical · Sunday at 13:333 days

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IAA and Air Reg.

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Simply Japanese at Beaulieu 19th July 2026

Check engine light comes on and off sporadic.

JaiKai - MK2 - Ziggy Build

Check engine light comes on and off sporadic.

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