qatcool

Have you found the repair?

i have a code for knock sensor, can this cause this? when the engine is cold, it runs fine and shifts fine,but it get hots thats when the stumbling happens. even in neutral, when its cold you can rev up to 6000 rpm, but when its hot it only rev up to 3000 rpm and its start to shake. my 1st suspect is the MAF but a mechanic told me that it might be the fuel pump. is their a replacement MAF can you please give me the part code that fits VG33E.

I need your advise. My pathy runs just fine at low rev between 1500 - 2000 rpm, as i step on the gas pedal, and it reaches 3000 - 3500 when it shifts it will shake, as i release the gas then the next gear will come, i have replace the fuel pump and filter nothing happened. when the whether is hot it does even at 2500 rpm. can somebody advide what look for the problem. can the MAF do this? distributor maybe? is my transmission failing?

My 2002 R50 came with 3.3ltr. VG33, I believe VQ has 3.5 ltrs.

have you replace the fuel pump?

I know how you feel....just a thought, when my a/c compressor was change they have mistaken 2 vacuum lines in the canister. maybe you have swap the lines?

Any change after replacing the MAF?

While waiting for your truck to get fix.. so i can follow your lead, my a/c died need to spend 2000QR for the fixed.... my wife had enough of my pathy...

This part can fit to VG 33E?

Thank you for this information. if you can help me also for the knock sensor. and harness.

Did you to nissan? can you provide me the part numbers? thanks

My 2002 have a VG33, I went out lastnight to a mechanic, we observe even if i step on the gas pedal it wont rev up and it start to shake/stamble until i release the gas pedal then it will shift. he told me to check the catalytic conveter and remove what ever is in there. is this a good idea?

I just got the code PO0325 knock sensor. will this fault can cause this? what happen when knock sensor fails.

Will this fit in 2002 VG 33E engine?

I have read somewhere here that they used a MAF from nissan Maxima, although the engine is VQ, can we use the same in our VG. Thanks

HI i am also keeping an eye on it goes, and i am also not mechanically inclined. just a question how many O2 sensors does are R50 has and the location. may be I can DIY this thing. Thanks

Any luck finding the fix?

I believe we have the same dilemma, please let us know when you solve the problem. i will look forward

Hi all, I have this concern of delayed shifting. this only happens in the afternoon when oil is already hot. i went to Nissan and told me that the transmission is already finish due to burn oil and need to replace the transmission. 1 mechanic told me that this is due to TPS throttle position sensor. I am planning to change the transmission oil. any advice. is my transmission already gone.

2002 nissan pathfinder, automatic trans. Running in highway, between 2000 to 4000 rpm no issue, but when i step on the gas and the rev goes 5000rpm it hesitated to shift as if i have a missfire. as i loose the gas it shift right away. please your advice where to start looking. Thanks

I asked 1 of a mechanic, and he just adjusted the TPS, I dont what it is, i believe its throtlle position sensor. and its ok now. he informed me that it is shifting late.

Its been a year since i bought my Pathy, i replace all under - chasis bushing, ignition coil,spark plug, and fuel filter. but 1 concern that i dont know how to address is the shift shock, you can feel the transimission shifting especially from 1st to 2nd gear, according to my mechanic its normal, sometimes the shifting is smooth when i rev up to 3500. anybody here can advice?

Thanks for the reply, I had it top up, pressure is 35 on suction and 165 on discharge

Last Year I had my A/C compressor replaced ( AC delco). it seems fine, now that summer has come, i dont feel that it is cooling especially during noon. any body here knows whats the working pressure of the refrigerant?