Changedmy PIP sensor, now problems

Here's my way of thinking:

I installed the dizzy and the car started and idled fine. I checked the timing and I was only a few degrees off, so that tells me I got the rotor back to where it started.

Also, even if it was pointed away from 1, doesn't it stand to reason, since the spark and fuel functions get their point of reference from the same reluctor wheel, that if it's timed correctly the injectors are seeing the same reference? When you turn the distributor to time the car, it is like making the fine adjustment to bring everything into balance. It's like when people say "you're a tooth off" lol.

HISSIN50 said:

Not trying to insult anyone but I have brainfarts sometimes:

Timing is being tested with the SPOUT out?
The dialback on the timing light is zeroed?
The car runs decently - it's not 180* out? You probably didnt turn the motor over while the dizzy was yanked.

The most likely thing I can think of is that perhaps the rotor didnt line up with number 1 exactly. This will hose your injector timing (you fog the cylinders instead of misting them).

Click to expand...

Spout was out when I timed it

No dial on this timing gun

Never disturbed the motor while dizzy was out

I went back to another thread where I talked about the coil plug being messed up. I unplugged and plugged it in a few times and one the way to work it had nice acceleration all the way up.

A funny thing though, is it normal for the stock tachs to skip big chunks of RPM while your foot is through the floorboard?

There were no shims in this distributor. And I marked all the corresponding wires with their towers on the cap. My plug wires are original and have each number on them, so I just took that number and marked it on the cap next to where it goes. they are all back to where they belong.

And I always thought the Tach got it's reference from the coil. or is it from the wire on the coil that comes form the PIP? Either way, it's got good acceleration now, the tach just jumps.

Well, after many days of trying this and that, I finally decided to pull the dizzy back out and replace the PIP yet again. Went to Napa this time and now the car purrs like a kitten. I could tell when I first started it up and the smell of the exhuast was like it should be!

I also changed my balancer so this time I was able to get it correctly on 12*. No pinging, no breaking up at high RPM's and no more skipping giant chunks of RPM's on the tach.

Safe to say, I nipped this problem in the bud! And with the new balancer, it's smooth as silk too!!! Thanks everyone for your help and support on this issue. :SNSign: