I got everything I know done and when I try to start it only cranks. It also sounds kind of weak its a 93 talon. Where should I look for a solution at?
Also I put gas in and changed the plugs and wires and flushed the radiator and changed the oil. I was thinking that it could have something to do with the ECU since its from a different car then the engine and the wiring harness.
Unless you have a tuning device you need an ECU that matches the injectors your motor has. What did you swap from? Was it a 1.8? And is the 4g63 na or turbo?
Although there is a good chance you have the wrong ecu, the car should at least turn over and then (worst case) idle bad and stall.
Do you get spark? Fuel? Compression? Those are the only reasons it might not kick over. Maybe CAS? Also you said different harness... did the old one plug right in or is there stuff not attached?
Year really doesn't matter if you have a 91-94 ecu. Im pretty sure a 90 won't just fix when you swap it. Could have bad caps, but first check the basics. Spark,fuel,compression.
when it started it runs real rough and vibrates. it doesn't seem to have much power. there are a couple vacuum hoses i don't know where to hook up coming out the thermostat housing and one other hosed on the intake manifold that has no hose attached. any suggestions?
How did you manage to get the engine in yourself? Honestly, no offense, but from saying something like that, I'd suggest you have a local DSM'er come take a look at your car and fix up all the issues. He/she can show you what everything does and where it goes.
I realize just about everyone has blocked their egr and don't have the vac lines going to the thermostat housing (for that temp sensor) but it's funny to see people not even remember they used to be there.
Although the OP is clearly confused it isn't helping him to tell him he doesn't know what he's doing.
If a vac hose isn't connected you are just creating boost leaks.
Things to double check:
Make sure the FPR vac hose connects to the intake manifold where it should be.
Make sure the BOV is connected where it should be.
Make sure the wastegate is tapped directly off the jpipe (right after the turbo compressor side)
Just about all the other vac lines can be capped off. If you still have an EGR those vac lines from the thermostat housing need to be connected as shown in the diagram.
There's tons of other things to check also such as that your firing order is correct and that you are using a 1g ecu, and correct size injectors (should be 450 for stock).
He is right I don't know much more than the basics but I got the engine in and ran a new wiring harness also. That being said I don't know what FPR vac is, BOV is, or CAS and it's a non turbo 6 bolt engine. I checked the fuel and the spark. How do I check the compression. I haven't timed it yet but it feels like it's completely missing cylinder maybe even two.
I have the chiltons book and it has a diagram of all those censors and vacuum hoses i appreciate the help i will keep you posted if i have any more problems.
edit; if the enjectors are the problem, what size do i need?
So you swapped from N/T to Turbo? This is in the wrong section if this is the case.
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