i bought what i thought was a 7afe for 200$ from junkyard but the IM doesnt have the EGR Valve nor the Vacuum Switching wich would make it a 1.5L 5afe right? how could i tell for sure what it is besides that i also looked for the metal plate on the block wich would say but its missing. also if it is 5afe how much worse is that than the 7afe what all would i be losing?

wess-

1.5L-5afe

93-95 fed emissions 7afe do not have EGR.

Today i took paint thinner and rubbed the block clean where the eng# is and it said 4A what woulld it be then anyone? i think it would be a 4afe 1.6L...

what would be the bads of keeping this engine bc having a kid in all im tight on money and need to get the celli up and running, i already have it in with my sensors screwed in the back of the block should i just delete the egr and vacuum switching valve. would my ecu even work with this engine? everything is pluged up but i couldn't get it to do anything besies turn over maby a different distr. any ideas????

i dont know, if they are different emissions specs then im pretty sure the pinouts are slightly different.

>
ECU should work. The disadvantage of this motor is basically that it's smaller and probably older. It is better than a 5AFE however. Check your wiring again (grounds mainly) and then do the basic checks for spark/fuel, etc. The 7AFE ecu can run the 4AFE.

I checked it when I first put it in and it was getting a yellowish spark, however I think the Distributor was going out. The secondary resistance wasn't right on the ohms, nether was the GE- & NE- terminals on the distributor harness, and also my starter burned up in the process. Fuel was getting to the plugs, aswell as spark at first, and when i put my finger in the spark plug hole it was poppin' out air. everything was plugged up, however due to the 4AFE head the EGR was blocked off (wich wouldn't be no biggie). Once i get a new Distr. and Starter , I can do some more trouble shooting. The only difference between a 4AFE and a 7AFE is the stroke (7AFE - 85.5,4AFE-77.0)resulting in 7AFE more torque lower RPM,4AFE less torque higher RPM,CC(7AFE-1762,4AFE-1587),PS(7AFE-115,4AFE-105),RPM(7AFE-5400,4AFE-5600). To install it all I had to do was to use my Power Steering Pump bracket, and screw out the sensor on the back of the block and screw mine in. Now if i can just get it running!!!

Wouldn't a 7afe Distributor work for this 4AFE, and if it won't how could I customize the Distributor harness to match mine.

wess-

4afe lacks a knock sensor, 7afe pcm is going to be looking for one. if you could install your old one into the new block it should work out OK


oh it does sound like you got the knock sensor to swap over, good!

yea thats the sensor that is like a 30' somethin mm socket right
if it is
/ check
V

This post has been edited by TrD3sgte94: Dec 30, 2007 - 9:07 PM

its below the water pump pipe on the back of the engine, cant remember the wire color but it looks like the oil pressure sender.

no one ever answered my question, but does anyone know if a 7afe distr. will work on a 4afe or do i need a distr. for that?

wess-

sorry, i do not know 100% but i think they are the same part.