Cold start = no go

[Bunnyhop280z]

Hello guys

I resently bought a "new" 77' 280z.

I have a problem with it though, when i start it up cold it just dies.

When i press the accellerator it revs fine, but it dies when i let go.

When the car gets warom it work about perfect, it "jumps a little up and down every now and then.

Anyone have any idea what this could be?

Also it gets a little hot, i'd say 10 % over the middle of the "temp-meter"

Should i be conserned about that?

-B

[Zed Head]

Read up on the Auxiliary Air Regulator (AAR). It is a device designed to increase idle speed when the engine is cold by allowing air past the throttle blade. They get stuck often, there was actually a dealer-installed fix for them, but only if people complained.

Index of /FSM/280z

[EuroDat]

Hi Bunny,

Welcome to the club. Would be nice to hear how you ended up with a 280Z.

There are a threw things that can cause your problem. The thingS that springs to mind is the Cold Start Valve, Thermotime switch and Auxilery air valve (Air regulator).

Do you have a copy of the FSM (Factory Service Manual) and the Supplement aka EFI Bible. Plenty of test you can do to troubleshhot the EFI. Follow link to downloads

XenonS30

As for the warm temperature. The guage is not that accurate. Better to use a thermometer in the radiator the check the guage position and note the temperature.

Goodluck

Chas

Edited July 21, 2014 by EuroDat
Link fixed

[Bunnyhop280z]

Thank you guys for the quick reply, I'll read up on these things and give a reply when I've checked 'em out.

On how I got my hands on the Car, I had a 120y earlier and got bitten by the Datsun-disease.

I've always wanted a z, so when one finally came up for sale I had to buy it.

It got importer from the Us two yrs ago.

It's all original for now, but I'm gonna do some modification to it this winter.

Might need your help for that

Again, thanks for the help

-B