Seekingterror3

Bought a car from this guy for $400 (automatic) but it idles up and down after idling for about 20 seconds and every now and then it will shut off. I've cleaned the iacv, replaced the tps (worked perfect for about 2 weeks then stopped), replaced z6 cam gear with a y7 gear, reset ecu, new map sensor. The only codes its bringing up is for knock sensor and high voltage map circuit.... could the high voltage be it? Bad ecu? Any ideas? Thanks

tony_2018

What ecu? Why change gears if its the same block?

Seekingterror3

Stock ecu, can't remember the name but because we thought it was the timing

tony_2018

What is the part # on the ecu? You better make sure the timing marks line up or else you could end up damaging the head.

eghatch9295

iTrader: (1)

auto ecu= looking for knock, ckf, 3 wire iacv. all of which a d16z6 does not have. post pics of the throttle body area of the motor, the ecu and wiring connected to it.

NotARaCist

iTrader: (1)

It's throwing codes for a knock sensor and a MAP sensor, so you replaced basically everything except those two sensors? Uh...what?

Seekingterror3

It still has the y8 manifold

Seekingterror3

Still has the y8 manifold

eghatch9295

iTrader: (1)

you must be VERY smart. knock and ckf sensors are located where?

Seekingterror3

I didn't do the swap but they're just hanging there since there isn't anyway for them to plug up lol

NotARaCist

iTrader: (1)

What's your point? Follow the diagnostic procedure I just handed you.

What you've been doing is called "wasting money throwing random parts at it." That's not what we do around here. We do proper diagnostics. It's cheaper, faster, and more effective than what you've been doing. If you'll do the proper diagnostic tests, we can have you fixed in a day or two. If you aren't, then please go waste someone else's time.

eghatch9295

iTrader: (1)

google ckf bypass trick. google "adding knock sensor to d series engine"

Seekingterror3

I don't think the knock sensor would make it idle up and down or very high

Seekingterror3

What tools would I need for this?

tony_2018

The y8 manifold has nothing to do with your error messages. You know what the issue is since you notice the wires dangling there. Get to work.

Seekingterror3

The only wires really dangling are for the knock sensor. I'm not being lazy or anything. I just don't think it would effect it. My buddy doesn't even use knock sensors. But anyway I'm using a Y8 dizzy, could that have anything to do with it?

tony_2018

high voltage map sensor circuit means the ecu is getting a higher reading than it usually should in normal conditions. Electrical issue. Did you reset the ecu?

Seekingterror3

Yep. Took the negative off the battery AND took out the back up fuse for over a minute

Seekingterror3

Adjusted my TPS now its idling at 3000 rpms

tony_2018

vacuum leak....

NotARaCist

iTrader: (1)

Are you serious? It says, right in the page I linked you, exactly what tool you need.

At this point, you just need to go ahead and take your car to a professional shop to figure it out. We've given you two options. You decided to ignore both, and go for something that, diagnostically, there was nothing pointing to. Please stop wasting our time.

Seekingterror3

Sorry I don't have a billion tools laying around. I'm broke as ****. Plus I don't even know what kpi or kpa, whatever it is. I know what a scan tool is

NotARaCist

iTrader: (1)

It's a unit of measurement for pressure, which is what the MAP sensor checks. If you pull up the MAP reading in a scan tool, it'll show you exactly what you need to see. If you don't have a scan tool, buy/borrow/rent one. If you can't afford to buy/borrow/rent one, find a friend who has one. If you can't find a friend who has one, find a friend who can buy/borrow/rent one.

And one last whack at the dead horse: Had you done proper diagnostics from the beginning instead of throwing random parts at it, you'd be able to afford to fix this.

Seekingterror3

Ok everyone, my map sensors ground is too high. What could that be?

NotARaCist

iTrader: (1)

...Are you serious right now? Follow the flowchart I gave you. What does that tell you?