3.4 swap runs but sputters smooths out then dies smells very rich

[Fierofool]

Never had one to fail. 

[GTRS Fiero]

Better than the factory, huh? 

[Fierofool]

I can't say yes to that.  None have been on there for 35 years, yet. 

[GTRS Fiero]

There is someone developing new EGR units.  I'm hoping tomget a test unit, soon.

[Sandman87]

Yeah I just filled it up a little bit again the other day it's got three quarters of a tank. Fuel filter is brand new. Getting stable fuel pressure.it will cold start right up. Once it warms up a little bit it will be sputtery and then I mess with the throttle position sensor have a little bit in it will run fine but starts throwing code 32. Throttle position sensor is brand new as well although I have the bend the tab considerably in order to get .5 volts. Cheap RockAuto stuff. so the only other sensor left to replace his that vacuum solenoid I just want to get it out of the way just to rule it out. The little hose that you speak of is in good shape on mine I also have plenty of extra silicone vacuum line that I bought. Just not too sure what else I can do to make it run right. Seems like some days it runs great some days it don't. making an order today for new front calipers and brake lines and tie rods upper and lower ball joints that way I will feel safe taking it out on the road and hopefully after driving it around a little bit maybe some sensors will get everything sorted out and start running better. But got to wait till the front calipers, at least because they are locked up.

[GTRS Fiero]

Have you reset the ECU.  Also, have you programmed the IAC?

[Sandman87]

If I resetting ECU you mean disconnecting the battery for a few minutes yes.haha , I'm not sure how to set the idle air control valve I assumed it just did its thing once it was installed .

[GTRS Fiero]

There is a complex procedure.  Driving over 35 MPH, slowing.  Seems unnecessary, but many report this is the correct procedure.

[Sandman87]

Okay cool yeah I can do that once I get all those suspension and brake parts put on right now that calipers grabbing so bad I'm going to end up starting a fire if I drive it. And the rubber brake lines and tie rods really make me super nervous so once I get all that stuff put on I'll take it up and down the road and see if things smooth out. Like I said some days it will start right up and run great and rev up fine and idle all day long and other days it doesn't want to stay running and sputters . My parts should be here next Friday so unfortunately I have another week to go until I can even try it out.

[Sandman87]

Will breaking and suspension components some showed up on Saturday the rest are supposed to show up today so that's awesome don't have to wait the rest of the week hopefully I can get this thing rolling around today

[Sandman87]

I am still not able to find that EGR vacuum solenoid so if anyone's got a known good working one for sale let me know

[TopNotch]

I still have one.

[Sandman87]

I pulled mine apart and checked it out it was really clean inside and the coil was nice and clean all the holes breathe fine I can blow air through all of them.it currently doesn't even want to start up and stay running unless I hold the gas and it seems like it's missing.

[Sandman87]

So I got it idle in on its own butt though idle is super erratic making popping noises and is idle between 500 and 1500 RPMs. Pretty sure the timing is right on is it ran fine earlier this month I replace every sensor and I threw an AC Delco throttle position sensor in there and I'm getting .5 volts at idle I'm at a loss I'm not sure what else to do. Maybe I should get a whole new distributor and maybe a new fuel pressure regulator? I'm getting 45 to 50 lb of pressure while running. I just don't know what else to do

[GTRS Fiero]

The FPR is good, at those pressures.

For now, we'll figure that the compression is good, for the same reason as the timing.  That leaves fuel, air, compression, and spark.  Could it be backfiring?

Let's figure that it's getting air.

There is a small bypass hole in the throttle nody.  If you cover that hole while the engine is idling, does the engine die?

I wonder if it's starving for fuel.  How do the plugs look?  Pull the injector fuses.  Using a work glove, hold a plug against the block, and observe the spark while cranking.  What color is the spark?

Check the injector fuses.  Is either one blown?