Timing question.

[j3pz]

have you tried to reset the timing to see if it jumps again? im assuming you dont want to tear into it though.

[supramacist]

I'm going to mess with it tomorrow and see what I can figure out.
Hopefully someone on here will have something that will help

Ya I don't want to tear into it again, just yet I have options still before that.

[supramacist]

Actually Fock it. I'm on it tonight.

I think the timing belt has skipped. Nothing else it could be.
I could fix it by adjusting the dist teeth forward but that's not where the problem came from. SO I'm going into the idle tensioner pulley.

[IHateHacks]

Before you do anything drastic, did you jumper the terminals before you hooked that timing light up? Or did you just hook a timing light up while it was revving at 2000rpm?

The ECU advances the timing as much as 30-40 degrees BTDC depending on load, rpm, throttle position.

You might have been reading that IF you didn't jumper the terminals in the diag box.

And if you did jumper the terminals, that means you have no codes, correct?

Jumpering those terminals in the diag box is JUST LIKE disconnecting the vacuum line and pluging it on an old school vacuum advance distributor. <----- IF there are no codes.

And whoa there buddy, timing belt tensioner? WTF? Just take the upper timing belt cover off and see if the marks still line up when the crank is at 0.

It's called setting base ignition timing. If you did all of this, nevermind my rambling, I will promptly delete this post.

[mrnickleye]

Did the vacuum line come off that goes to the valve on the pump. Its there to up the idle during turns at idle.??

Also, the t-belt did NOT jump teeth. Why would that happen now ?

Disconnect the battery. Let it sit for 15 min then connect it again. Drive the car around the hood for about 10 min, this should allow computer to relearn.

Did you remove the distributor to do the pump clean???

[supramacist]

All I have done so far is crack into the timing belt.
It's solid. Then I cam back up here to check the forum.

HH: No sir. Thank you. I will go back down and place that jumper wire in.
I had assumed I didn't need to do that since I had previously timed it with the jumper wire in. Thank you very much. My purpose for going into the timing belt was to make sure the cams were at tdc with the crank.
We're on the same page. Stellar.

Mrnickleye: My next step was to adjust the dist rotor up a tooth.
But now thanks to hh I'm going to recheck the timing with the jumper wire in and see if that doesn't do it. This should put me where I need to be and I'll unplug it and roll it as well.

Edit: I had already been all over that idle line. I have it propperly secure. I'm phasing out stock clamps and going with worm clamps.

Out of curiosity..., guys. What would the car do if the dist rotor was already off a tooth? Would it have a slight sense of hesitation kind of like a baby miss or like a fowled plug? Sorry for lack of better terminology.

To be honest I am not such the mechanic to know what you mean by pump clean. So I won't even venture a guess.

Thanks guys. Very much.

[cre]

Actually, given that the timing light is lighting the timing mark when the #1 cylinder is firing 10? is still going to be 10?... you'll just have less room to adjust the dizzy in one direction.