So a couple weeks ago I was getting onto the highway and had to quickly accelerate, which resulted in CEL with a p0016 code. The vehicle continued to run and drive fine and I was on the highway for only a few miles. After a quick look over, I cleared the code and it stayed off for a couple trips until I jumped on the highway and the CEL came on at exactly 70 mph during normal acceleration. I cleared it again and it began popping up every trip. Never experienced any issues along with the CEL. I lined up the hole and pulled the OPDA and found a prior owner put in a Dorman. Didn’t notice and abnormal wear on the gear. I checked the TDC (at least I believe it is the mark, pic attached) and found it pretty far off. I pulled the opda again, aligned the mark and replaced the opda. Took two trips so far and the light remains off. I’m looking for some advice as to if there’s potentially deeper issues at hand that I should address? Did the timing chain jump, and if so, why didn’t I notice a change in performance? Is the timing slowly changing and the computer is fixing it? In the meantime I also ordered a new oem sensor (in case the prior owner put the dorman on). Any help and/or advice is greatly appreciated. Vehicle is 2005 Wrangler Sport, 4.0L, 50k miles. I’m not a mechanic, just a DIYer. Thanks!
P0016 OPDA adjustment?
- Thread starter Zappid
- Start date
Can you tell if the PO kept the original sensor when they replaced the opda? Even with the crown unit you need to throw away the new sensor and reuse the oem. It is one of things the 4.0 hates, a different sensor.
I didn’t get any paperwork regarding when it was changed. Not sure if there’s a way to tell by looking at the sensor. I bought the Jeep about 5 months ago, it’s not my daily driver, but I’ve put around 3000 miles on it before this light popped up. I’ll definitely swap the oem sensor when it comes in on Monday (if the light comes back on). Thanks for the response!
if you do end up changing the opda again, makes sure you get the crown unit..but find an oem sensor.
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