Ken's 1989 BabyZilla

[m_melen]

Lol your car's eyeballs are bleeding. Do those deatschwerks come with o-rings?

[TheyKilledKenny]

I ordered a O-ring kit with them, I think they were around $20.

[TheyKilledKenny]

CAR TROUBLES

I washed my engine bay Tuesday July 12th, and everything was working fine, I covered my fusebox and pod air filter. I took my car out Friday July 15th and everything seemed fine as I went to the shop to get an wheel alignment done. The tech finished aligning my wheels and took my car for a little cruise to test out his work. As he passed the shop I heard the car struggling on the road, and thought "oh god, this guy cant drive a standard." He comes back and asks me if Ive been having issues with it, I told him no. He says it wasnt revving up and it was stalling, he had to keep the pedal pinned to make it back to the shop. I reset my ecu, and left the shop, and of course it started happening to me.

When I get it up to about 2500RPM it starts to chatter and bog out, but not all the time. I checked for codes, and supposedly Im "55". If I keep shifting at 2500RPM while its doing this and get into 4th or 5th gear it will usually go away for a bit and let me rev past 3-4K RPM. I can then down shift into a lower gear and still rev past 3-4K, but it still has the occasional bog out and lurch.

Ive tried playing with my TPS trying to find a sweet spot to no avail. I set it all the way clockwise when it was doing this to me after I left the shop, and the Idle fluctuated between 1500 and 2000 RPM (figured it would be higher all the way over), I didnt have my multimeter so its hard to say where it was. I made it home because it was mostly freeway and the car doesnt seem to run poorly when maintaining a good speed in a high gear.

I checked for codes again, still none. I got my multimeter out and reset my TPS to .48V(750RPM) and went for a drive. It runs fine for a while, but at some point when sitting at a light it just stalls and becomes hard to start. When I finally do get it started the idle is high (1500RPM) and sometimes it even starts jumping around quickly between 1-2K. I turned on my lights when it was doing this quick rev jumping and it leveled out the idle at a crazy high 1900RPM. Took it for a drive and it still was bogging/chattering/lurching. I checked the voltage at my fuel pump when it was doing this and its around 13.55V the whole time. A lot of the time the idle is steady (but stalls), but in this one instance that I caught on the first video it went berserk.

INFO - New fuel filter, fuel pump, clean resoldered MAF, fairly new plugs, good fuel pressure (Tomei reg + gauge).

Could my TPS cause my vehicle to run like this? Or have I been visited by a electrical ghost?

Im posting videos as they upload, any help would be appreciated.

click on video for direct link

[TheyKilledKenny]

New additions: Essential and Greddy gauge pods. I have some ideas for what to fill them with
Still waiting on my Greddy Profec boost controller.

[Voodoo_ChildR32]

Sweet build! Reminds me of my old girl, had an 89 just like this but silver. Looks like you've put a lot of time and effort into this one, can't wait to see it in person.

[TheyKilledKenny]

Sweet build! Reminds me of my old girl, had an 89 just like this but silver. Looks like you've put a lot of time and effort into this one, can't wait to see it in person.

Ya for sure, Im trying to get my car up and running then we could go cruisin. Right now Im just hoping I can find a extension spring to match the one I lost out of the IACV air regulator last night lol. FACK!

[TheyKilledKenny]

I found a pack of springs at princess auto and put my IACV back togther.

MORE INFO ON CHATTERING/BOGGING PROBLEM

My car runs fine when cold, and just warmed and still moving. Once I decide to let it sit and idle or a minute or two when hot it dies, and sometimes is hard to start after. Once I start it up its idle jumps up to 1800RPM and the chattering at 2500RPM when driving occurs with constant bogging. I noticed last night when I took it for a drive when it started chattering at 2.5k the cat overheat light came on each time for a split second...today the light never came on. I wonder if its my AACV and not my TPS/MAF?

[Voodoo_ChildR32]

Could be from the sounds of it. It's open when cold and slowly shuts as engine gets to operating temp.

[TheyKilledKenny]

feyd182 aka James was kind enough to stop by today so we could do some problem solving on my chattering/bogging problem. We swapped AAC valves but the problem persisted, then we tried swapping MAFs....BINGO. Using James' MAF I had no problems at all. Time to resolder my MAF (again) or possibly find a another one. Thanks for the hand man

[Voodoo_ChildR32]

No worries, was glad to help ya finally get it solved.


Sent from my iPhone using Tapatalk

[TheyKilledKenny]

I re-resoldered the MAF and no more chattering or bogging at all, I did notice a bit more idle hunt than I experienced using feyd's good MAF.

[Voodoo_ChildR32]

AWESOME! You have a clean ass ride, glad she's running good for ya now. Try cleaning the MAF again and tweak your idle and see if that helps with the hunting, also reset the ecu we threw a lot at it so it may be a bit confused. We gotta go for a cruise sometime, you know where to find me....

[Supraclean]

Make sure to check the connection from you maf plug? into the maf. I found on my car that it would hunt as I did not have it secured properly.

[TheyKilledKenny]

AWESOME! You have a clean ass ride, glad she's running good for ya now. Try cleaning the MAF again and tweak your idle and see if that helps with the hunting, also reset the ecu we threw a lot at it so it may be a bit confused. We gotta go for a cruise sometime, you know where to find me....

Thanks =) Ya Im down for sure, hopefully the weather will start getting a bit better.

Make sure to check the connection from you maf plug? into the maf. I found on my car that it would hunt as I did not have it secured properly.

The plug snaps in well, Im not sure WTF its problem is. I have a Mishimoto intercooler on the way, so if my Greddy Profec ever gets in from performance-wise then Ill install em and head for the tuners. Z32 MAF FTW. I paid for the boost controller over a month ago, when I asked them where it is they say "We sent this originally on the 19th of June. I looked into it and the parcel hadnt left the post office yet. I dont know why this happened and Im sorry for any inconvenience caused. We re-lodged it today and you should get it within 4-5 days." They gave me a tracking number atleast...

[TheyKilledKenny]

Small Update-

Everything Ive ordered has come in.

I got some new shift/handbrake boots with blue stitching instead of red and a wideband.




Picked up some blue rad hoses to match the intercooler couplings.


Took a few pictures of the car. This is my girl without her skirts on.




Only thing Ive done so far is put on the rad hoses. I have a couple of days off so I may through in the EBC.
Pretty much after everything I have so far is installed all Ill need is adjustable cam gears, oil cooler, and a larger turbo + exhaust manifold.