After engine replacement, when accelerating from a stop and the car gets to 55 MPH it is sluggish and would cut out, code P1148?

INTRIPED1870

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2013 NISSAN SENTRA
1.8L
4 CYL
2WD
AUTOMATIC
13,000,000 MILES

I bought this car listed above with a bad motor. I bought one and put it in and I'm getting this back on my OBD 2 and EOBD reader.1. P1148 Manufactured Control 2. P0031 Ho2s heater control circuit low bank sensor 1 Intake Air Temperature sensor circuit low. 3. Camshaft Position Sensor A circuit bank1or single sensor. This is from 7E8:Engine 7E9:A/T had no codes. On the 7E8: Engine 7 in total some repeated twice. I did drive it and it ran decent but when taking off and getting in it at 55 MPH it was sluggish and would cut out every little bit until I eased off the gas. I did get some connectors in dusty dirt by accident, but I shook them off good. Could this be what's going on? Dirty connectors?

5 Replies

KEN L

MASTER CERTIFIED MECHANIC
47,643 POSTS

I would check all of the engine grounds to make sure they are connected, then I would clear all codes and then turn the key on without starting the engine to see what comes up. If any these will be the codes, we address first. Let me know. Here are the ground locations in the diagrams below.

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Thursday, July 14th, 2022 AT 9:08 AM

INTRIPED1870

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I Will send video tomorrow I'm dumb as a box of rocks when it comes to this. Sorry. No grounds found loose and cleared codes. Getting four codes: intake Air 2 codes camshaft sensor and last code Manuf. Control. Just like my original question but three less codes. Could one sensor being bad be causing all of this?

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Thursday, July 14th, 2022 AT 5:44 PM

KEN L

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Yes, but I would say you are on the right track with dirty electrical connectors. There were no codes when you removed the engine from the other car correct.

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Friday, July 15th, 2022 AT 10:21 AM

INTRIPED1870

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I wouldn't know on that, but I do know the motor came out of a wrecked Sentra from a repeatable salvage yard here. That's where I bought the engine. I bought a camshaft sensor sometime back, but I haven't put it on yet + I still got the old engine that has all the sensors on it. If my memory is correct the cam sensor is behind the starter. I may start there and start changing sensors until I find it.

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Friday, July 15th, 2022 AT 11:09 AM

KEN L

MASTER CERTIFIED MECHANIC
47,643 POSTS

Yep, that is a good idea here is the location of the camshaft and crankshaft sensor in the diagrams below. Check out the diagrams (below). Please let us know what you find.

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