Car runs super rich post motor swap - ideas?

[Turf1600]

How's your o2 sensor? Do you have a cylinder not firing?

It sounds like there may be a miss at low RPMs. The car revs all the way up to the redline it just won't idle and it's running rich at low rpms.

[BenM]

sounds like a vacuum leak.

[Turf1600]

The valve cover to TB hose is new - all hoses to the charcoal cannister are tight - the hose to the brake booster is present. What else is there?

The fuel lines are correct. The spark plugges are fouled.

[nando]

Swapped AFM made no difference. I'm wondering if I mixed up the fuel line and the return.

if you did that it wouldn't start unless your FPR is blown.

have you put in a new coolant sensor yet? that is most likely to make your car run very rich, other than the AFM.

[george graves]

Now's about the time I'd go drive the piss out of it to get a better feel for what it's doing.

[Turf1600]

I swapped one of the sensors - the one nearest the front of the engine bay. I can't get to the other one. Which controls the ECU?

[blunttech]

The valve cover to TB hose is new - all hoses to the charcoal cannister are tight - the hose to the brake booster is present. What else is there?

The fuel lines are correct. The spark plugges are fouled.

spray carb cleaner around that fucking vent tube that connects the intake to the crankcase while its running to check for leaks. in fact spray that shit everywhere at idle.. did you remove the intake when you swapped?

[nando]

I think it's the other one - blue connector?

[Jean]

I swapped one of the sensors - the one nearest the front of the engine bay. I can't get to the other one. Which controls the ECU?

Disconnect one of the sensors while the key is in ON position, watch the temp gauge. It will be the one that doesn't affect the temp gauge.

[Turf1600]

I got her going - but I might be cheating. I reconnected some things and drive her around - definately sounded better but still wouldn't "idle" unless I held my foot on the gas - but it still ran smoothly @900 rpms with no more gas smell. I just adjusted the cable to make it idle at 900 and voila...running car. I also changed the cheap autolite plugs to busch platinum fours.

[george graves]

Platinums blow in my experience - You'll run nice for about 200 miles - then they rob you of power. Keep an eye (or butt dyno) on them.

[nando]

did you ever change the coolant sensor? I don't know how I can be more clear. :p

Your TPS is probably misadjusted as well, since you messed with the throttle stop. that means the ICV doesn't turn on, which is likely why it died unless you held open the throttle.

plus, yeah - why are people still wasting money on platinums? I guess they're easier to find these days. plus multiple tip/v-groove/splitfire spark plugs = LOL

[Turf1600]

It was the AFM.

[Naplm00]

yay, knew it!