Pre Cats

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April 2, 200619 yr

Is the zed suppose to have a precat aswell as the normal cats???

I have a pre cat on the left side exhaust :confused:

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INSURANCE GOOFA

Datascan, Conzult, ECUTalk and a few others

I have all the rare bits you can't find :tongue::tongue:

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April 2, 200619 yr

yep, proper decat pipes will replace the precat, and cats.

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April 2, 200619 yr

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yep, proper decat pipes will replace the precat, and cats.

But should it only have one precat or one either side :confused:

Membership No 0780

INSURANCE GOOFA

Datascan, Conzult, ECUTalk and a few others

I have all the rare bits you can't find :tongue::tongue:

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April 2, 200619 yr

UK spec 300ZX's have a pre-cat on one side and nothing on the other. it was a bodge by Nissan to get through emissions. JUST.

If you fit de-cats, they replace from turbo outlet to exhaust H section.

Regards

Kev

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April 2, 200619 yr

But should it only have one precat or one either side :confused:

yes, there was no room to fit on the other side

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Check engine light comes on and off sporadic.

P0400 indicates an EGR Flow Malfunction. The ECU has detected that the Exhaust Gas Recirculation system is not flowing the expected amount of exhaust gas back into the intake. On the Z32, this is frequently caused by carbon clogging the EGR tubes (especially the one running under the plenum), a failed BPT valve, or a stuck EGR valve itself. It can also be a vacuum leak in the lines controlling the EGR.
P0136 refers to the Oxygen Sensor Circuit Malfunction for Bank 1 Sensor 2. Bank 1 is the right side of the engine (passenger side on US LHD models, driver side on RHD), and Sensor 2 is the rear sensor located after the catalytic converter. This code usually means the sensor itself has failed, the wiring to it is damaged (burned on exhaust is common), or the connector is corroded. Since it is the rear sensor, it monitors catalyst efficiency rather than air-fuel ratio, so it likely won't affect drivability as much as a front sensor would.
P1150 and P1155 are manufacturer-specific codes for the 1996 Twin Turbo. These refer to the Wastegate Valve Control Solenoid Valves. Since you have a Twin Turbo, you have solenoids that manage the wastegate actuators to control boost pressure. P1150 typically points to the wastegate solenoid valve circuit, and P1155 is often listed for the same system (possibly distinguishing between the two solenoids or a specific electrical fault within them). Seeing both simultaneously suggests a potential electrical issue common to both solenoids, such as a shared power supply fuse, a ground issue, or a disconnected harness in the engine bay near the boost control solenoids.

By Dazsw · 11 hours ago11 hr
Hi all - New (returning after 20 years)

His last z was a good example.Keith does personal imports & I have no doubt this one will be a good buy also.Let us know how you get on !

By jimmer · Monday at 12:031 day
Hi all - New (returning after 20 years)

3 hours ago, jimmer said:Hi Fella,Welcome back.It just so happens Keith Bailey who has been a customer of mine with his last Z has a manual car he imported less than 2 years ago for sale.It is silver,Rust free & bog standard.His no is 07808924417
Hi Jimmer,

Thanks for the advice, ill drop him a call.

By Wolfpack · Monday at 11:511 day
Wipers and Washer issues

Hi Joel - and welcome back!
This is the main relay - they are NLA from Nissan so it might be worth buying another to swap, just to confirm whether it's the problem.
NISSAN 300ZX Z32 TWIN TURBO VG30DETT WINDSCREEN WIPER RELAY MODULE | eBay UK
Failing that, it could be the switch itself; you may need to replace the LH control pod.
Richard

By RichardS · Monday at 09:541 day
Simply Japanese at Beaulieu 19th July 2026

Fingers crossed Steve......😁

By RichardS · Monday at 09:261 day

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Check engine light comes on and off sporadic.

Hi all - New (returning after 20 years)

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