Nissan ELGRAND who has one?

[jsaure72]

Doc, got my power steering fixed today. You were right that it just needed to be bled, jeez guy I don't know how you do it but thanks. Read your thread about bypass oil filtration and I would like to have that in my elgrand too. Enjoyed how you tore *dagul a new one man.

[dvldoc]

Remember I am a ASE ceritified master Mechanic so thats why I know what I know.. I also research the crap out of anything I do or recommened to anyone. but always happy to help. air in a hydraluic system can cause all kinds of issues. I had my brakes, and power steering bleed for the heck of it when i got my van since I know its coVerted and both those systems have been opened to do it.

You just need to comme back down here so we can tweek it for more power.

[jsaure72]

Doc, any particular thing I need to remember when getting a bypass filtration kit? Thread size, etc?

[dvldoc]

You will not find that anywhere for the elgrand aa that size is not made anymore, I however have enough for almost a full set up at the house including the adapter, pm me is you are intersted, it also comes with 4 filters good for 80000klm

[ianvelacruz]

You will not find that anywhere for the elgrand aa that size is not made anymore, I however have enough for almost a full set up at the house including the adapter, pm me is you are intersted, it also comes with 4 filters good for 80000klm

hi..am a new owner of Elgrand Homy QD32 engine. it was flooded up to the floor level just recently because of habagat. have it changed oil already including oil filter. have the interiors cleaned and dried also however, 3 days after, the check engine indicator on the dashboard lit up. engine started to falter and die down especially iif aircon is on and travelling at a very low speed. the rpm is inconsistent as it goes up and down on its own. when i turn on the aircon, instead of the rpm levelling up, it goes slightly lower and then eventuall, engine turns off by itself. have it checked by electrician and he recommended to change the MAF sensor as it does not work anymore. have it replaced already by second hand sensor but the problem still persists although quite lessened. after that, the computer box was diagnosed and scanned. the following results came out;

Detection Condition:

DTC is detected when...

-fuel injection feedback system does not operate properly (this system consists essentially of ECM electric governor control sleeve position sensor

Check Items (Possible Causes)

-main power supply circuit and fuse
-harness of connectors (electric governor and control sleeve position center circuit)
-electric governor
-electric fuel injection pump
-ECM

the mechanic suggested to replace the entire fuel injection pump to remedy the problem


My questions are:

-Do I really have to replace the entire fuel injection pump or i might resort to calibration only
-if i need to replace the fuel injection pump, what other parts do I need to replace also if there is any
-how much are fuel injection pumps for QD32 engine

my post is quite a stretch but i am hoping to receive assistance from you. Thank you very much for your help

[jsaure72]

Sent you a pm doc but just in case, keep it for me man. By the way your inbox says it's full. Too much fan mail man. Way to go.

[dvldoc]

flooding up to floor level is nothing, the ecm is higher than that, also your air intake is higher than that so syou should not have gotten any water in your engine. second hand maf sensors are a bad ideal, and if they are not the exaxt same part number or cross reference then it will not work properly.

your mechanic looks like he is going for pesos not solutions.

first check your fuel system for water, these tanks are 12 years old and can have small holes ot leaks that could have easily let water in with flooding.

I would bleed the system, change the fuel filter, add 200ml 2T oil to your fuel to lubricate the pump,

also check to see if your air intake hose connected to the turbo is not split, if it is this could be your problem iand if that was underwater you would have sucked down water.

I see no reason the inectioN pump needs to be replaced at this time.

hopefully your mechanic is talking about the in tank fuel pump and not your injection pump. if the intank pump goes bad it can cause your issues.

[ianvelacruz]

Thanks for the quick reply. I will advise my mechanic to do the suggestions you gave. Anyway, he was referring to the fuel injection pump and not the intank pump. I will just post here the result after. By the way, would these actions already remove the check engine light indicator on the dashboard after or I have to submit it for another computer box analysis or scanning to reset and delete the problem. Thanks

[jsaure72]

Thanks for the quick reply. I will advise my mechanic to do the suggestions you gave. Anyway, he was referring to the fuel injection pump and not the intank pump. I will just post here the result after. By the way, would these actions already remove the check engine light indicator on the dashboard after or I have to submit it for another computer box analysis or scanning to reset and delete the problem. Thanks

Sir, kamusta na po yung elgrand mo?

[ianvelacruz]

flooding up to floor level is nothing, the ecm is higher than that, also your air intake is higher than that so syou should not have gotten any water in your engine. second hand maf sensors are a bad ideal, and if they are not the exaxt same part number or cross reference then it will not work properly.

your mechanic looks like he is going for pesos not solutions.

first check your fuel system for water, these tanks are 12 years old and can have small holes ot leaks that could have easily let water in with flooding.

I would bleed the system, change the fuel filter, add 200ml 2T oil to your fuel to lubricate the pump,

also check to see if your air intake hose connected to the turbo is not split, if it is this could be your problem iand if that was underwater you would have sucked down water.

I see no reason the inectioN pump needs to be replaced at this time.

hopefully your mechanic is talking about the in tank fuel pump and not your injection pump. if the intank pump goes bad it can cause your issues.

Doc,

I have tried this already. Bleeded the entire fuel system, drained the diesel tank and replaced the fuel filter. Found the split in the air intake hose and have it covered (although in your older thread, the location of the split in mine is different from what was shown in the picture, i have to double check if there is also a split in the area you pinpointed). I also cleaned the MAF with contact cleaner. When we turned on the ignition, the check engine light blinked instead of its previous state where it just lighted. However, we were able to bring the van back to Olongapo City from Manila while the check engine light was blinking. By the way, I also placed 2T oil in the diesel tank. The engine still loses power but not that much already and it did not turn-off even once while we were travelling. The problem is that the check engine light is still blinking and the engine also still loses power especially when the AC is turned on. Do you have other suggestions to remedy the problem? Thanks. Your help is greatly appreciated

[dvldoc]

You can almost bet the second hand sensor you have does not work. Diesels are just big air pumps, and without the proper fueling they will run like crap, The MAF is what controls your fueling. Never use a second hand 10 year old MAF sensor and expect good results from it. Getting a new MAF sensor is your best bet.

I would also check your air con compressor assembly to make sure it is not binding, but you you can almost be sure it's the MAF sensor that is bad.

On a bad not the only other thing that normally causes a blinking check engine light is a bad piston. Hopefully you do not have that. If you can find a shop that can do a compression check then you will know for sure.

[ianvelacruz]

You can almost bet the second hand sensor you have does not work. Diesels are just big air pumps, and without the proper fueling they will run like crap, The MAF is what controls your fueling. Never use a second hand 10 year old MAF sensor and expect good results from it. Getting a new MAF sensor is your best bet.

I would also check your air con compressor assembly to make sure it is not binding, but you you can almost be sure it's the MAF sensor that is bad.

On a bad not the only other thing that normally causes a blinking check engine light is a bad piston. Hopefully you do not have that. If you can find a shop that can do a compression check then you will know for sure.

Doc,

Thanks for the reply. I am now using the original MAF sensor on my engine and plan to reimburse the price I paid for the second hand MAF sensor once I have the time to go back to Banawe. By the way, I forgot to mention that when we bleed the fuel system, the fuel filter was full of water and mud. The diesel taken out of the tank is cloudy/hazy as well suggesting mixture of water. My mechanic thinks that the fuel injection pump needs cleaning because water and mud might be sucked to it when I used the van from Olongapo City to Manila, where the symptoms stared to come out. Do you think its necessary? Thanks again for your patience.

[jsaure72]

The old maf might still work, cleaning with contact cleaner or the 95% isopropyl alcohol might do the trick. Same thing happened when my maf got wet by the rain while i was fixing the turbo inlet crack. Once I cleaned it, the van was ok again.

[crazy_boy]

dvldoc, with all the power of your elgrand, hows the brake system now? did you do any upgrade?

[dvldoc]

I use upgraded pads from the states currently, but will be switching to larger disk and caliber when i get my larger rimes

[crazy_boy]

I use upgraded pads from the states currently, but will be switching to larger disk and caliber when i get my larger rimes

are you planning to upgrade to cross drilled and/or ventilated disks?

[jsaure72]

I use upgraded pads from the states currently, but will be switching to larger disk and caliber when i get my larger rimes

Doc, for stock 15 inch rims, whats the biggest tire that I can put on the elgrand?

[dvldoc]

got those at the house.but as i stated they are to big for my caliper bracket do to the oem 15in wheels. i will upgrqde to pathfinder brackets and wheels. looking into a rear disk conversion as well.

[dvldoc]

18 in rims will fit, but makke sure you get rims with a 100mm hub,or the wheel will be sitting on the botls only. Most rims around here tend to be 108mm.

[jsaure72]

18 in rims will fit, but makke sure you get rims with a 100mm hub,or the wheel will be sitting on the botls only. Most rims around here tend to be 108mm.

If i dont change my rims doc, can I put a bigger tyre without affecting performance too much? Present tires are 215/65/R15