Hiya, i'm new around here and joined for information and also advice into how i should go about dealing with my Z.
I bought this Z a few months back with a relatively unknown history, the only real info i had was that the engine was rebuilt in the last 5 years or so, has atleast a few minor mods (radiator, BOV, potentially turbo stuff?) and that the car ran decently well.
i've come to self diagnose that my knock sensor is knackered, my speed sensor either has a bad ground, worn out or needs a solder fix in the dash(0-5mph wiggle upon being stationary occasionally), and due to the 5~ years since an engine rebuild i think the timing belt + tensioners require doing just for peace of mind (the cars only done 4k miles since the rebuild)
i'm more electrically inclined than mechanically inclined so i wanted to ask for any reccomendations for shops that are familliar with z's to fix my knock sensor and change the belt + tensioners and to perhaps have a quick look over the general state of parts on the car. The only place i know of is PowerZed but its quite a trek (which i guess isn't the end of the world if y'all reccomend that as the place to go).
By
Z32 Enjoyer ·
For a while now my z has had an issue with running when cold.
It was partly solved when I had the aav replaced, but not completely.
The garage that did the work said that problem may be down to the ecu?
I did borrow a ecu and try to see if it made a difference but it didn't.
I'm starting to think that the garage didn't realize the zed had a separate ecu for the fuel pump and was wondering if this may actually be the issue.
Before the aav was replaced the revs dropped right down from start up.
Now it last for about 30 seconds until the revs drop.
Once the engine is warm, it runs fine.
Also, I've notice that the fuel pump is humming louder when the revs are low.
Question is...
Is this issue down to the fuel pump ecu or the fuel pump itself? Or is it something completely different?