Timing chain done...now a rough idle/low power issue! Help!

[cdscowboy]

Alright well I did the timing chain kit on my stock ka24e this last weekend (using http://www.240sx.org/links/installs/timing_chain/). Went fairly well, but took like 12 hours (that includes driving around getting things we forgot...doh!). She started right up and no rattle....oh so nice

Anyways, she's running rough at idle. Sounds kinda like a V8 or something, so I'm assuming it's missing. The reasons for this that I've come up with are:

1. I cracked the mount on the distributor when I was replacing it because I tried to mount the dist. with the spindle indside the front cover. It didn't crack all the way across, but it's pretty substantial. I'm thinking maybe that's throwing my timing off or making me miss or something.

2. I've done some researching (here, mostly) and now I'm wondering if maybe it's the MAFS?

Anyone have any other ideas, things I can check? I've got a new dist. coming in the mail, so that'll be fixed. Any knowledge is appreciated

[Dattebayo]

Yeah, thats definately a timing issue. You must replace what you cracked first. No argument.

Next, did you install the distributer correctly and have the cams set to TDC? If you did not do this correcly, there is your other issue.

[cdscowboy]

Yeah I had it at TDC for sure. I triple-checked, then had my friend check too just to make sure And we reinstalled the dist. correctly, with the rotor facing towards the rear, kind of down a little.

[cdscowboy]

Well.....none of the above! I checked the vacuum hoses and stuff and those were all fine. So I checked the throttle position sensor like I'd read about, making sure it got enough voltage or something. It seemed to be fine, but when I put my voltmeter on the middle wire (there's 3), the engine cleared up and she sounded perfect, even when I revved it.

So yeah....wierd. I'm gonna get a new tps tomorrow and I'm pretty sure that'll fix it. Either that or my wiring's ****ed.

[Dattebayo]

You could also just jiggle the wiring going to the TPS and see if that helps. I had similar issues at one point and i had to splice in a new harness piece pretty for back. Just remember to use a soldering iron.

[cdscowboy]

Yeah I've heard of a few other people having to resolder various connections. I'll fiddle with it a bit more later.