73 2.0 djet idle problem Options

[jasons]

Car is a 73 2.0, new TPS, new FI Points, new TS1, existing TS2 (its the 017), all intake runners, hoses, gaskets, and PCV are new, injectors were cleaned and serviced by witchhunter. Also all parts are correct for the 73 2.0. I put a 270ohm resistor in too. Car seems to run lean at idle (I have an air fuel meter).

I had the wrong TS2, because I replaced it with what I thought was the correct replacement. Upon further review, I put the used 017 piece back in.

The car had been sitting when I bought it, so I dropped the motor to take care of a few problems, and I refurbed the FI while I was at it.

Car seems to have good power and pull hard, but it doesn't seem to idle quite right. It oscillates between, 1000 and less than 500, while the air meter reads lean. Air bleed and the knob both effect idle, but I can't get it to stabilize or richen up on the meter.

Also, I have a euro-race header and MSD. Should I play with the resistor or the FPR to richen the car for these parts?

[jasons]

When I had the motor out I checked all the parts and I'm 99% sure they were all correct for the 73 2.0. The only reason I'm not 100% sure is everyone asking has instilled some doubt. Last night I checked the fuel pressure, it was low, like 26 lbs. So I bumped it up to 30.

At Idle the AFR gauge reads off the scale lean. I get AFR readings on the gas it reads good, and after accelerating and closing the throttle it reads rich. Its narrow band, and I'm not convinced it reads good at idle. But the car does have the low idle hunt. Honestly, I've owned 2 djet cars and they both did this. I really want to get this car to idle right.

The MPS held a vacuum if I used my mouth to pull on it. It is the 037 and has the seal on the adjusters. Should I have you check it out?

What about adding some resitance on the head sensor? It has a 270 ohm now.