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post #1 of 4 Old 05-07-2017, 08:50 PM Thread Starter
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Unhappy Suggested Repairs?

2012 Nissan Versa Hatchback 1.8L 65k Miles 6 Speed

I'll keep this as brief as possible.
Vehicle originally would idle around 1500 rpm. Giving it gas wouldn't rev over 2500rpm.
Had 5 error codes, 3 for MAF, and two others p2100, p2101
Cleaned MAF and cleared codes, no difference in performance, but MAF codes didn't return, only p2100 and p2101
Cleaned Throttle Body, attempted relearn procedures for idle and throttle position. No better performance.
Replaced MAF just in case, same issues and returned part.
Replaced Throttle Body, now car has symptoms but somewhat different even after relearn.
p2100 and p2101 still present, but vehicle still idles high. When I hit pedal it revs to 3000rpm but then seems to hunt between 1400 and 2100rpm. I can drive it but only at about 20mph. Battery voltage is a little over 12 when off, 14 when on. Tempted to return the throttle body since it didn't seem to fix the issue. Someone told me to check fuse 52 which is in the ipdm I believe. Took a while to determine which it was but it isn't blown.

Any suggestions? This is driving me crazy because the car had a powertrain to 60k and is at 65k. I first joined this forum in 2013 when I was looking to buy, Versa was highly recommended here not that it matters now. I appreciate any assistance, and thanks for the help.

Last edited by 2w1cked; 05-07-2017 at 08:59 PM.
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post #2 of 4 Old 05-07-2017, 09:20 PM
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The p2100 & 2101 probable are your problem. You probably found this same information that I'm about to post:

P2101 NISSAN - Electric Throttle Control Performance 2 | Add Comment Possible causes Faulty Electric Throttle Control (ETC) Actuator Electric Throttle Control (ETC) Actuator harness is open or shorted Electric Throttle Control (ETC) Actuator circuit poor electrical connection What does this mean? When is the code detected? Electric throttle control function does not operate properly. Possible symptoms Engine Light ON (or Service Engine Soon Warning Light) P2101 NISSAN Description The throttle actuator is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve. Power supply for the throttle control motor is provided to the ECM via throttle control motor relay. The throttle control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not provided to the ECM. The opening angle of the throttle valve is detected by the throttle position sensor which is mounted on the throttle body. The throttle position sensor provides feedback to the ECM. This feedback allows the ECM to control the throttle actuator and monitor the throttle opening angle in response to driver inputs.

Read more: https://www.autocodes.com/p2101_nissan.html

From what people say about this you need to run the electrical checks on the ECM (the usual guess it's bad).

Do hth's
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post #3 of 4 Old 05-07-2017, 09:38 PM
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For info, the throttle motor relay appears to be in the IPDM and is not serviceable, without replacing the IPDM.

SM says to attack 2100 before 2101 and includes disconnecting the ECM and IPDM and checking the integrity of the wires between the two that provide the power and control of the throttle motor relay. (Unfortunately, don't have the wire #s for your car.) If you can find those pin #s , you could do that to determine if the wires are good which, then, would point at the relay being bad. If those wires are good, it says to replace the IPDM (to get the relay replaced - unwritten, but implied). But, then under 2101, it says there is the possibility the throttle motor is stuck due to foreign object and if so to remove that - which based upon your info does not seem to be the case. [And you already tried (and know), beyond this info, that the SM says if the throttle motor is replaced (disconnected) (and/or ECU is disconnected), then throttle and idle relearns must be performed; idle relearn more complicated to get right, than the simple throttle relearn.]

Last edited by car guy; 05-07-2017 at 09:40 PM.
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post #4 of 4 Old 05-10-2017, 11:32 AM
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Not really related but I'd be figuring out how to change the relay in the IPDM, has to be a way. I did it on the FORD IRCMs and CCRMs and a piece of cake-$5 to replace a $200 part.

And even less related. I used to work in the parts business. When they got so stupid they began to let every incompetent person try part after part to then bring them back over and over then that's when I drew the line and quit. Basically any employee can give up any hope of decent real world raises as the company is giving itself away to idiots in million dollar losses. Creating a sense of rampant entitlement there similar to all the stealing going on over the 'net because people think they shouldn't have to pay for anything at all. It's what has greatly inflated prices so much due to constant 'bad' part return with nothing wrong with them at all. When I left 80% of the 'bad' parts were not bad at all and the vendors responded to the chain giving them away to only come back with whopping increases that usually were up to a hundred a day and often hundreds more on top of that. It got bad enough that an employee 40% discount was still much higher than parts online cost. People also refusing to buy thousands of parts in the stores because they look used right out of the box, nobody wants one that somebody else has used and even worse with an electrical part as the previous person could have flawed it and then a supposedly new part toasts YOUR computer. The vendors were actually uniting to create an entity to start charging the chains a charge simply for flow-through parts like that and where a lot of the 20% restocking fees now come from, that will only get worse, I'm hearing 30% coming next. If you buy OTC at parts chains you were getting the royal screw some years ago, only a fool goes there now.

What I'm really waiting for..........they are beginning to question that if parts can be returned like that with no responsibility to keep what you bought then when an employee turns out to not be a 'good one' then they let him go and also expect to get their money (at least part of it) back on that to help with the other issue. One has no idea of how far that idea will go once the rich get ahold of it.

Buyer (worker) beware...................what you do now may eat you alive later. (it already is if you buy OTC)

Last edited by amc49; 05-11-2017 at 12:37 AM.
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