Spyder 4G63T not wanting to start

[903_DSM_GST]

Hello everyone of the DSM community I have a 4G63T Eclipse Spyder not wanting to start and I’m looking for some help on why it’s not wanting to start. Me and my best friend have been working on this for a long time and we’ve fully rebuilt the engine because it had no compression before but now we have everything put together and back in the car and it’s still not wanting to turn on. Keep in mind we have air, fuel, spark, timing, compression, but it’s still not cranking over, please help

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[DSMPT]

keep in mind we have air, fuel, spark, timing, compression

If so, you may be missing the ignition timing or fuel pressure.
Start from switching the spark plug wire ordering. 4123 <-> 3214. That's one of most common causes of no-start issue after rebuilding.
And double check if you connected all sensors back and into the right plugs. Especially the coolant temp sensor.

P.S. You are double posting in different sections, delete one.

 

[903_DSM_GST]

If so, you may be missing the ignition timing or fuel pressure.
Start from switching the spark plug wire ordering. 4123 <-> 3214. That's one of most common causes of no-start issue after rebuilding.
And double check if you connected all sensors back and into the right plugs. Especially the coolant temp sensor.

P.S. You are double posting in different sections, delete one.

Okay I’ll try that tomorrow when I get a chance to

 

[miliman13]

Do you have link ?

 

[FIBA M - EC17PSE]

Please dont double post your request in multiple threads. Stick to one only

Have you confirmed your crank sensor is working and not busted or faulty. Same as cas sensor. They rely on engine signals to start

 

[903_DSM_GST]

Please dont double post your request in multiple threads. Stick to one only

Have you confirmed your crank sensor is working and not busted or faulty. Same as cas sensor. They rely on engine signals to start

Sorry about that I didn’t mean to do that

Crank sensor is brand new so it should be working

 

[FIBA M - EC17PSE]

Crank sensor is Brand New so it should be working

Have you confirmed all connections are setup and you have the correct triangle connector in the proper ports as AC and crank sensor are the same and easily switched by mistake! If you are 1000% sure its all ok then pop the ecu open and check inside as you could be fighting a bad ecu

 

[903_DSM_GST]

I believe everything is connected properly but when we go to fire up, it’s having a misfire, mainly on cylinders four and three

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Update: Cylinder 4 doesn’t have compression unlike the rest of the cylinders which is weird because the engine is freshly rebuilt with new pistons, piston rings that are within spec, so I’m more than confused right now.

If so, you may be missing the ignition timing or fuel pressure.
Start from switching the spark plug wire ordering. 4123 <-> 3214. That's one of most common causes of no-start issue after rebuilding.
And double check if you connected all sensors back and into the right plugs. Especially the coolant temp sensor.

P.S. You are double posting in different sections, delete one.

This worked but I’m still not getting the results I need

 

[DSMPT]

This worked but I’m still not getting the results I need

That means the no-start issue was caused by the wrong spark plug wire ordering. Now we know that you have another issue and need a diagnosis for that.

Cylinder 4 doesn’t have compression unlike the rest of the cylinders which is weird because the engine is Freshly rebuilt with new pistons, piston rings that are within spec, so I’m more than confused right now

Please provide a pic of timing side by setting the crank timing mark, not the timing marks on cam gears.

How did you know #3 and #4 have misfire and #4 doesn't have compression? Did you actually test it?

 

[903_DSM_GST]

That means the no-start issue was caused by the wrong spark plug wire ordering. Now we know that you have another issue and need a diagnosis for that.

Please provide a pic of timing side by setting the crank timing mark, not the timing marks on cam gears.

How did you know #3 and #4 have misfire and #4 doesn't have compression? Did you actually test it?

We tested compression on all 4 and number 4 was the only one that read 0 and the others had over 90 psi, and I the way I check to see which was misfiring I had a water bottle and sprinkled water on the header to see which one was sizzling or just running off and 4,3 were duds

 

[DSMPT]

We tested compression on all 4 and number 4 was the only one that read 0 and the others had over 90 psi, and I the way I check to see which was misfiring I had a water bottle and sprinkled water on the header to see which one was sizzling or just running off and 4,3 were duds

Are you sure the compression tester gauge working good?
Please upload a pic (or a video) to let us see the valve timing anyways. And you should remove the valve cover to check cylinder #4 valve position.

 

[903_DSM_GST]

I’ll try too when I get a chance because we did call it a night and check again later

Are you sure the compression tester gauge working good?
Please upload a pic (or a video) to let us see the valve timing anyways. And you should remove the valve cover to check cylinder #4 valve position.

I’ll check when I get a chance too because we called it a night and cleaned everything up