S2000 Under The Hood S2000 Technical and Mechanical discussions.

Car Wont Rev Over 3,000 RPM

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Old 04-27-2006, 09:29 AM
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Originally Posted by mxt_77,Apr 27 2006, 09:20 AM
Random question... is the ECU for the same market as the car (ie, JDM vs EDM, etc)? Seems like the ECU doesn't like the signals it's getting from the sensors... so maybe there is a harness/wiring incompatibility.

Alternatively... what is the history of this car? Accidents/theft/etc? Sounds like it definitely has issues.
Its a JDM import and the ECU is the same that came with the car.

These are the codes I got with an OBD Reader:

P0122 TPS/Pedal Position Sensor A Circuit Low Input
P1298 Electric Load Detector (ELD) Circuit High Voltage
P1367 Camshaft Position (CMP) Sensor B (Top Dead Center (TDC) Sensor) No Signal
P0412 Secondary Air Infection System Valve A Malfunction
P1412

Anyone had any of these problem before, how did they fix it?
Old 04-27-2006, 02:18 PM
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To have that many sensors go wrong is kinda weird.

Maybe check the wiring harness connections?
Old 04-27-2006, 06:21 PM
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I had a similar issue come up when I did a clutch job. Turns out I forgot to reconnect the harness at the back of the valve cover. The car wouldn't rev past 3k with it unplugged. maybe that's the cam position sensor plug? Not sure, but it's worth checking. I'd go through the engine bay double checking all the harnesses that you can reach.
Old 04-27-2006, 07:21 PM
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Check fuse #6 in the under hood fuse box for the P1298 ELD code.

The low RPM rev limit is due to the P1367, the PCM is is a "limp mode" and won't return to normal until that DTC is cleared and stays away.

The P0412 and P1412 are not listed in my 00-03 manual, and may be completely different for a JDM market car.

Check the connectors the the TPS sensor on the throttle body, and the TDC sensors on the back of the valve cover.

There are multiple checks to make for each DTC, a dealer may be your best option for getting the car repaired.
Old 04-29-2006, 06:18 AM
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Originally Posted by Slows2k,Apr 27 2006, 07:21 PM
Check fuse #6 in the under hood fuse box for the P1298 ELD code.

The low RPM rev limit is due to the P1367, the PCM is is a "limp mode" and won't return to normal until that DTC is cleared and stays away.

The P0412 and P1412 are not listed in my 00-03 manual, and may be completely different for a JDM market car.

Check the connectors the the TPS sensor on the throttle body, and the TDC sensors on the back of the valve cover.

There are multiple checks to make for each DTC, a dealer may be your best option for getting the car repaired.
What does TPS, ELD, PCM and TDC Stand for?
Old 04-29-2006, 06:27 AM
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Originally Posted by J33LUS,Apr 29 2006, 09:18 AM
What does TPS, ELD, PCM and TDC Stand for?
TPS = Throttle Position Sensor
ELD = Electric Load Detector
PCM = Powertrain Control Module (not sure on this one)
TDC = Top Dead Center
Old 04-29-2006, 06:43 AM
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Told you these guys would get your further

Have a good check of the harness. I'd say youv'e got a connector not in properly!

What was the last thing done in the enginer bay. Trace your steps back!
Old 04-30-2006, 02:39 PM
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PCM=ECU
Old 05-01-2006, 08:20 AM
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Originally Posted by J33LUS,Apr 29 2006, 09:18 AM
What does TPS, ELD, PCM and TDC Stand for?
You should be able to find it somewhere in this thread:
https://www.s2ki.com/forums/index.php?showt...dpost&p=1138231
Old 05-01-2006, 08:45 AM
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check ur TDC sensor,its a plug located near the firewall, it might be lose! once you plug that in, pull ur fuse and reset the engine it should be FIX.


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