79' 280z

[Michael29]

Hello, i have a 280z 79' that runs fine when cold but as it warms up it start to die,"it's almost like choke is staying engaged but ive checked that and it opens as car warms. ive checked voltages on everything except temp sensors there are 4 of them...... does anyone no wat the proper voltages and ohms for theses sensors are any help would be appreciated... thx , Michael:dead:

[MikeW]

Just for clarification: the last 280Z in the US was a 1978 model and the 280ZX was introduced in 1979. This club is mainly for 240Z, 260Z, and 280Z people.

[Michael29]

:mad: well since this is supposed to be one of the biggest clubs on tha net for z cars i figured SOMEONE COULD/WOULD help me, even though i have a 79'Zx & or maybe a lil bit more friendly response or even possibly directed to another z site where i COULD get or recieve information i need personally i dont find u people very helpful at all..... ive gotten 1 response an it is basicly says oo no its a zx blah blah blah.... so we cant help ya .. what a crock of phewy .. now i ask again...& nicley i might add ..can some one help me out plz.... im hoping one of ya can ..hope so if not... might as well take me off members list cause i wont need it anymore no sense keeping a link that is useless to me.. Michael

[AxtellZ]

Wow.

Calm down, everyone....

Giving the club the finger won't help, i'd guess- I'd be glad to help, but i know zippo about fuel injection- give me simple toilet carbs any day.

Do you have any manuals for the FI?

I'd *guess* its a AFM, or cold start valve, etc. But to be honest i have never worked on FI.

Have you tried the IZCC mail list www.zhome.com to signup. I bet Kim Blough in Idaho could fix you up in no time. May be worth it to try that.

Good luck, sorry you feel you've been jerked around here- but few of us have a clue about FI, and so wouldn't post a reply when we don't know.

You're still okay with me though-

Jeremiah

[sblake01]

Usually, that happens when you have either a leaking cold start valve or a shorted open thermotime switch. Check the terminals on the thermotime switch for continuity when the car is warm. If it has contunuity it's bad and needs to be replaced. If it's good, then remove the two bolts that hold the cold start valve and lift it high enough to clear the intake manifold and place the nozzle in a small container. Again with the engine warm, start the car and check if you can see any fuel leaking into the container. If you do, replace the cold start valve.

[Michael29]

hey thx guys for your input, i was begining to think i was wasting my time here..i was getting:disappoin with this site..anyways i will check those things out that you guys suggested and also the link that you gave me. i dont have much time now but i will post again as soon as im able & let you know how things turn out.. btw i appreciate the info & time you took to reply..thx again Michael29:D

[sblake01]

No problem, Michael29, the f.i. system on the 280Z and the 280ZX are quite similar in fact the f.i. system on my 810 is probably identical to you ZX. If I can help with a problem that is similar to ones I have encountered with my cars, I don't mind sharing the info. We do have a few members with stong anti ZX feelings but that doesn't represent all of us. I find that amusing considering how many people have ZX parts in their S30s. But Z31s, 32s, 33s are another story alltogether!