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N3A1-18-911 TPS Substitute

Old 01-08-19, 04:59 PM
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N3A1-18-911 TPS Substitute

I have been searching for a replacement or substitute for our OEM TPS.
Was about to try adapting another vehicles TPS to a FD when I talked to Palm Tree Rotary.

Contact Us

They informed me that Wells Vehicle Electronics will be remaking their version real soon. http://www.wellsve.com/parts/index.php?PART_NO=TPS4089
and to order it from Amazon.
Amazon Amazon

I just ordered one for testing. Will update this post upon installation.
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Old 01-08-19, 05:22 PM
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Excellent, this is good information
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Old 01-09-19, 10:32 AM
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Looking online at a local Mazda dealer, the manual TPS is no longer available so great find Chuck!
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Old 01-09-19, 10:45 AM
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Great find - look forward to your thoughts when you get it
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Old 01-09-19, 02:23 PM
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Here are some other helpful part numbers of aftermarket throttle position sensors available for reference.

Manual Transmission
1. Wells P/N TPS4089

2. Standard Motor Products P/N TH201 "Crosses to P/N N3A1-18-911, N3A2-18-911"
UPC 091769262129

3. Echlin Fuel System "NAPA"
P/N CRB 216707

4. BWD
P/N EC3240

Automatic Transmission
1. Beck / Arnley 158-1378
alternate P/N BCK-158-1378
UPC 49797880136

Last edited by Tripple 7's; 01-09-19 at 02:23 PM. Reason: grammatical error
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Old 01-09-19, 03:04 PM
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Is there an actual difference between the automatic and manual TPS sensors?

After I did my auto to manual swap, the same TPS sensor was used with zero difference in configuration so it makes me wonder why they're considered different. I see the automatic sensor is still availble, that's why I ask.
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Old 01-09-19, 10:31 PM
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Definitely interested in what you find Chuck

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Old 01-10-19, 12:08 PM
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Supposedly they are the same electronically and everything. Not sure why they made a difference. Maybe one has a slightly different shape - I think the auto trans dipstick is near that area, maybe a slight redesign for more clearance?

I think I've only ever worked on like 1 or 2 auto FD's so I'm not sure.

The good thing is the FD TPS is FAR better than the FC TPS. Those things constantly have problems.

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Old 01-17-19, 01:02 PM
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Today Amazon canceled the order due to item not available.
Wells told me production was stopped March 2018 with no info about remaking it..

Last edited by cewrx7r1; 01-17-19 at 01:12 PM.
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Old 01-17-19, 02:24 PM
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There are no actual physically identifiable differences between the Manual and Auto sensor, I even tune the TPS to the same voltage settings.

The dipstick is nowhere near the TPS, it is located on the passenger side of the UIM.
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