2015 jetta 1.8T crank no start

Yuralex2025 · Feb 18, 2025

I have an issue I've been chasing for awhile now. I have a 2015 jetta SE with the 1.8T (90k miles) that for the life of me will not start. I have replaced all sensors, it has spark(brand new spark plugs and ignition coils, it has proper compression in all cylinders, new fuel pumps, proper fuel pressure, injection is working fine. New battery, new'ish starter, all plugs getting proper voltage. Im literally at aloss here. And the codes that pull up are different everytime. Any help would be greatly appreciated if anyone has run into this problem as well.

ehutton209 · Feb 22, 2025

Wow, that's crazy! I have a '18 Jetta SE with 1.5 turbo. Has always started exceptnfor once when the battery died.

My background in electronics tells me if the hardware is good but you continue to see random codes, you have a bad computer.

Good luck!

tiga31328 · Feb 27, 2025

Any codes? I had this before with my 2009 Jetta SE when the crankshaft/camshaft sensors failed (once for each over the years). Symptoms were a strong crank but no engine start. I did have codes for them.

Yuralex2025 · Mar 4, 2025

I do have codes for both and both have been replaced. And I checked every wire from the ECU as well and they are good. I'm at a loss.

2015 jetta 1.8T crank no start

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