420A 2gNT No spark. No start. HELP!

[RoaSted]

I need help!!!! my car will not spark. My fuel pump is kicking on but i have no injector pulse. I have voltage on coil pack so its good but no fire. CAS and CPS are both good. I also changed the wires and spark plugs. I am so confused. Could it be the ECU??? Please help me ASAP im in a hurry. Thanks a lot

 

[4UH8ERS]

I need help!!!! my car will not spark. My fuel pump is kicking on but i have no injector pulse. I have voltage on coil pack so its good but no fire. CAS and CPS are both good. I also changed the wires and spark plugs. I am so confused. Could it be the ECU??? Please help me ASAP im in a hurry. Thanks a lot

Don't go jumping to the ecu to solve your problems until you have tried everything else, start small. Try testing your fuel relay on the firewall on the drivers side to make sure its working properly.

 

[RoaSted]

I have tried all the small stuff. The relays are fine. The coil pack is fine. wires and spark plugs are fine. If i wired the SAFC wrong would that make this problem im having. I have checked everything and the only thing i have not checked is the ECU. Thanks for the help...

 

[4UH8ERS]

If i wired the SAFC wrong would that make this problem im having. Thanks for the help...

Yes, anytime your splicing wires, especially to your map sensor and ECU which monitor your air and fuel intake. you comprise the functionality of the parts.

 

[VelocitàPaola]

Incorrectly installed S-AFC? Sounds like we have a winner...

Tell us exactly how you installed this thing so we can help diagnose what may have went wrong. It sounds like you accidentally severed the signal connection from the MAP to the ECU.

 

[RoaSted]

I had a buddy do it for me cause im not good with wires . He went by the chart on 2gnt. i need him to check it out cause i dont know what im doin. I looked at the diagram and then looked at his work and it all looked ok to me. But then again im not good with that. I have two wireds on the SAFC that im not even using is that suppose to be like that.

 

[DSMcrazy3]

Did it run at all after the SAFC install?

 

[RoaSted]

no it didnt. I just have re installed the motor after slinging a rod bearing and i hooked up the SAFC before the motor was in. then droped the motor in and hooked up everything. got nothing. Thanks for all your help with this. just keep giving me suggestions

 

[4UH8ERS]

WE will give more suggestions only if you follow are previous ones. remove the safc and see if it fires or triple check your wiring making sure it is installed correctly and all wires have a secure connection.

 

[DSMcrazy3]

Yep, definetly disconnect the SAFC and give it a go. Did whoever installed it even pre-set the SAFC?

 

[Old Mitsu Tech]

Ahhh yesssss. I've seen this before. When you remove the SAFC, check your engine fuse to see if it's blown. If it runs, well, you know the drill. SAFC install is not beginner territory. Find someone who already has one functioning and get their advice.

I had to remove one on a dealer trade for the very same reason. The dealer had to tow it to my shop. He gave it to me for making the car run. Not to mention all the other goodies I got. All I did was remove the SAFC, and replace the engine fuse and voila, it ran.

 

[RoaSted]

Ok ill check that. Thanks again. If thats not the prob you will be hearing back from me. Thanks for the help guys

 

[RoaSted]

Hey guys still have not figured out what is wrong with my car. I really have not had much time to play around on it. Still having that same problem as before and was wondering if anyone else with tha 420a has ever had this prob. If you could help it would be greatly apprecitated. thanks

 

[RoaSted]

Hey guys still need some help on my car. Im not getting any fuel or fire. I have checked my sensors, grounds, wires, changed my plugs, and even got a new coil pack. I have tried everything. If you all have any ideas as to what it could be let me know. Before i did the rebuild it started right up. But this time i added some things to help me run more boost. I added the SFMU and the 450 injectors and put a resistor pack on it. (could the resistor pack be bad??) And i hooked up the SAFCII thats all i did after replacing the bearings. Any help would be great i need the car up and running ASAP

 

[dr1665]

Double check your ASD and fuel pump relays. Remove the SAFC. Install the stock injectors without the resistor pack. You don't need either to start and idle the car. If you get the car running without those mods installed, then you know it's likely their installation which needs to be addressed.

 

[djjohns55]

To check to see if it is getting fuel spray some carburator cleaner or some wd-40 into the engine to check and see if it is getting fuel. If that doesnt work and If possible like the previous person said Redo and check every step of your mod.

"D"

 

[RoaSted]

I checked the relays already and they are working. Im having a guy come over sat. to look at it for me. He said he wants to start with the SAFC cause he thinks that might be where my prob is. One of my other buddies did that wiring for me cause im not good at it at all. Ill keep you updated and if you have anymore advice please fill free to tell me. Thanks a lot. I should be posting pics of my car up.

 

[boostnhard]

Correct me if im wrong but to me it sounds like a dead ECU. let us know how it went

 

[4UH8ERS]

I checked the relays already and they are working. Im having a guy come over sat. to look at it for me. He said he wants to start with the SAFC cause he thinks that might be where my prob is.

If you think the SAFC is your problem why wouldnt you disconnect it and then try and start it, to see if it actually is the culprit.?

 

[Locke]

Yay for 4uh8ers. That would be the easy way to check that.

Follow instructions per dr1665's post.

Check that the coil is getting power. If it is getting power, see if it is getting a signal (if you have a scope) Check the cam and crank sensors.

A noid light will let you see if the injectors are getting a signal.

 

[RoaSted]

I changed the coil pack already. would i have to undo all the wiring or just unhook the SAFC. Ill have him test all the sensors again but im pretty sure that all my sensors checked out ok already. Thanks again guys keep on with the suggestions they are much appreciated.

 

[Locke]

Could pull the cam sensor, check that the magnets did not fall and the clips are not broken.

 

[RoaSted]

Ok guys here is the update. I am gettin fuel my injectors are pulsing. im also smelling fuel so im sure its gettin the fuel. Still no spark. How many volts are suppose to go to the cam angle sensor we are gettin 7 volts and the manual says 12. Any way we tested the wires that go to the coil pack and we werent gettin anything. Could it be my ECU? Should i try to get the CAS and CPS first and if that doenst fix it go with the computer? thanks for the help. The SAFC is hooked up right by the way

 

[Blitzeclips]

Ok guys here is the update. I am gettin fuel my injectors are pulsing. im also smelling fuel so im sure its gettin the fuel. Still no spark. How many volts are suppose to go to the cam angle sensor we are gettin 7 volts and the manual says 12. Any way we tested the wires that go to the coil pack and we werent gettin anything. Could it be my ECU? Should i try to get the CAS and CPS first and if that doenst fix it go with the computer? thanks for the help. The SAFC is hooked up right by the way

Well, as far as I know, the CPS and/or CAS are run by output of the ECU. If you're voltage is low then I'd recommend checking for a parastic draw. Or atleast the battery for voltage. I'm confused though, is the primary problem the car not starting or a failure of some part?

I say ECU or bad/dead battery, possibly a parasitic draw..

 

[BigRand]

Do you have a friend or know somewhere you can try a known working coil pack/wires.....even someone who drives a neon or an avenger? I bet this whole thing is something really basic and that has just been slightly over looked.