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Need help! Dtc code p

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Old 02-21-2012, 10:17 AM
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Kevalteam
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Need help! Dtc code p

Yesterday service engine soon light came on.
I didn't think it was something bad and was going to take it to dealer after I look at the DTCs.
But when I was going home after work, on a stop and go local area, the car felt like it lost power and did not want to move. It moves really slow until it goes in 2nd or 3rd gear. The car is fine when driving at higher speeds. It's just on stop and go situations. Same thing even if I floor it.

DTC codes was:

P0735 Gear 5 Incorrect ratio
P2A00 Air fuel ratio (A/F) sensor 1(bank 1) circuit range/per-formance
P00C0 don't know what this is...

Current mileage on the car is 61500

I know I need to take it to the dealer, and I have coverage. 60 month/100,000 coverage.
But I am getting my interior and engine bay done and have all my interior off, even the shifter boot assembly, front engine shroud cover battery cover brake cover. The interior mod got nothing to do with transmission, but just want to be careful. And I have CAI intake, Test Pipes, Full FI exhaust. I tried to contact my salesman and finance adviser, but they are no longer working for the dealer...

Do I need to wait for my interiors to get done and put them on, or do you think that is not necessary? Also same goes for MODs on the car, I don't think it matters but I never had to deal with any problem till now. Thank you for your advices guys!

Last edited by Kevalteam; 02-21-2012 at 10:45 AM.
Old 02-21-2012, 01:37 PM
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Kevalteam
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P0735 INFINITI - 5th. Gear Malfunction

Symptoms
- Engine Light ON (or Service Engine Soon Warning Light) its on
- Incorrect transmission shifting

Possible Causes
- Low transmission fluid level level is good
- Dirty transmission fluid looks clean
- Shift solenoids
- Transmission mechanical problems
- Transmission hydraulic control circuit

Tech Notes
Start by inspecting the transmission fluid level and condition, and change fluid if necessary.

When is the code detected?
P0735 is detected when A/T cannot be shifted to the 5th gear position even if electrical circuit is good.

P0735 INFINITI Description
This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by Transmission Control Module (TCM) as follows:

Torque converter slip ratio = A x C/B

A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from Engine Control Module (ECM)
C: Gear ratio determined as gear position which TCM supposes

If the actual gear position is higher than the position (5th) supposed by TCM, the slip ratio will be more than normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.


I guess I have to take it in to the dealer, when my interior comes.
Old 05-30-2013, 06:08 PM
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mdaaboul313
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Any luck with the P00C0 code? That's the code I just got. I picked my car up from the body shop yesterday and they only put a new front bumper on... My car also idles at 1400 and it's a 6mt
Old 05-30-2013, 08:35 PM
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Sena
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Fuel pump?
Old 05-30-2013, 10:21 PM
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RISKY GUY
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^ IMO it's either fuel pump or a bad injector.
Remember my tranny was going, I had no warning lights.
Or my last guess would be possible bad fuel.
I was starting to learn serious trans problems, from just ECM/tcu.

Your car runs long trips, doubt its major.
Will double check with my mechanic.
Old 05-30-2013, 11:13 PM
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Kevalteam
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man back from the dead? kkkk
it was throttle body going bad....just one side. dealer wanted $1200 +.....
ordered both sides frok ebay and replaced it. less than $200. fixed!
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