car bogs and dies

[Reason]

Just started today, im driving on the high way about 65 slow down due to traffic. Once I step on the gas the car bogs and seems like it wants to die. WOT forget it. I have to slowly bring it to 60. As I get closer to home I step on it to better understand the problem, nothing. Car runs like normal and all is well. I go back out a few hours later no problems... go back home. Go back out a few hours after and here we go again. CEL blinking and I pull over car dies. This is with the bogging too. I take it about 10 miles slowly and it bogs here and there when I hit the throttle. I finally get home barely I get out the car and pop the hood. The car dies both fans going. I lean over with my hands on the radiator and just looking for anythig out of the ordinary. Then I think to myself, why is the radiator ice cold? Fans are working, engine is hot like normal, temp gauge is normal upper radiator hose is hot but radiator is ice cold. Im thinking maybe the car is over heating but the temp gauge never goes above normal. Radiator is a 1 year old oem logo. 1 year old oem subaru water pump and t stat. Wtf. At first I thought fuel delivery but this was before I noticed the ice cold radiator. No I didn't read the codes because everything is closed and autozone gives me a hard time everytime I go. Anyone have any ideas on what the hell is going on?

[ouch1011]

Is there any coolant in the cooling system?

[Reason]

I didn't check last night but had to top it off last thursday. Im burning a lot of oil and coolant lately. If do some reason the coolant is empty which it shouldn't that still doesn't explain the normal temp gauge.

[prodriver1]

could it be blocked coolant due to a bubble in the system? would a flush help?

[Reason]

All that could be posible, but still doesn't explain the normal temp gauge. That is what I find strange. When I get hme Ill pull the car out of the garage and hurl the system. Hopefully that's the issue.

[prodriver1]

I was thinking if it was blocked the temp guage could be reading a bubble and not the coolant, and the radiator could be just holding nice cool coolant all for its self.

[geckoboy86]

My old civic did this. IACV was bad.

[Reason]

My old civic did this. IACV was bad.

You sir might be correct! I swapped in one that I cleaned and wanted to see if it were bad. Well I guess I know now lol, it lasted about a year though. Hopefully its this because I have a bunch of them.

[Huffer]

OT, I cannot believe that you don't have a scanner, with all your nifty parts and whatnot. Please make that your next purchase Shane!

[geckoboy86]

My old civic did this. IACV was bad.

You sir might be correct! I swapped in one that I cleaned and wanted to see if it were bad. Well I guess I know now lol, it lasted about a year though. Hopefully its this because I have a bunch of them.
You sir are, welcome.


OT, I cannot believe that you don't have a scanner, with all your nifty parts and whatnot. Please make that your next purchase Shane!
I take it that Reason's name is Shane...Thats a great name. Its also my name...LOL.
This Shane has a scanner...works wonders.

[Reason]

Roger I've slacked in that department. I had my brother in laws for months. He recently sold it.... so yes its time for me to get one.

[Reason]

IACV isn't the problem. I still thinks its fuel delivery. I wonder if something came loose on my fuel pump or the inje toes are going bad.

[httrdd]

I had this happen to my swap car. I had to do with the maf. Car would accelerate normal then bog down real bad then pick back up to normal rpm. I found that loose solder joints were the problem. I resoldered it in 15 mins and it had worked great since.

[Grafton]

It does sound like a fuel problem, but I don't have any really good answer on the cold radiator

[Reason]

So last night I replaced the IACV twice.after the first switc the car idled like shit. He second time the car was fine. I let it run till normal operating temperature then took it for a ride. I drove around for 20mins pushing it and such wth no issues, awsome problem solved. Well I go to leave for work in the morning and start the car the idle is wicked roughs like thenight before. After about 25 seconds it smoothes out. So I gambled and took it to work. Well on the highway it starts to act up. Well luckily I made it off the highway. When that happens the car finally dies. It cranks but wont start, after letting it sit for about 20 minutes it starts and I limp it to a parking lot. So I've been reading about different symptoms but nothing really sticks out. So when I get home today I'm going to try a few things I think may be the problem and or never tried yet so why not...

1. I'm switching back to my MSD coil pack for one. This junkyard pack may be the problem.
2. Unplug the first O2 sensor to se if the problem god away.
3. Swap out fuel njectors 1 and 4. I swapped these in to try to solve my cylinder 1 misfire issue.
4. Pull out the fuel pump to see if anythig came loose. The walbro unit is smaller and it kind of floats in the bracket.

If anyone has anythig to add to this that think could be the cause please feel free.

[httrdd]

If all of that does not work swap out the MAF. Prob the jumk coil pack. That would explain the misfires.

[Huffer]

I think it's one or a combo of the following:

1. Bad coil pack. Go back to stock.
2. Bad injector
3. Fuel pump - you mention it's a walbro and it's "floating" - make sure it's secure and make sure your fuel pressure is consistent to all injectors.

Either way, you're going to have to go back to stock on at least some of your items to trouble-shoot. I guess you could test the coil pack but I have no idea how.

[Reason]

Ok so checked the fuel pump and everything looks good, on to the next....

[Reason]

Injector switch and still died, swapped back to MSD and it's about to die.... well its running rough. I think I'll do the MAF just for shits.

[httrdd]

Hope it works out for you.

[Reason]

Well it was running for awhile, I took it for a ride and when I flored it, it wouldn't go anywhere. Idle was fine and such. I got home and just realized I didn't plug the first O2 back in....

[httrdd]

So another test with it tonight?

[Reason]

Nah. Im done for tonight, to aggravated to deal with it. Ill continue the fun tomorrow.

[httrdd]

Soooooooo.....

[Reason]

My grandmothers 77th birthday today so I just had a chance to drive it. It seems fine, BUT I suspect this engine doesn't have much time on it. I was hoping to make it to 300k but its developing some rod knock, oh and it seems to be running rich...

[httrdd]

So which fix worked? Maf replacement?

[Reason]

Yea so far it looks like it was the MAF. I spent a few hours cleaning some junk out of the trunk checked all my hoses and fluids. I need to start order parts for this new block. Wish I could find time to actually work on it. I may need to drop it off to WI or DSG if I can't put the time into it. I want to at least get another year of daily driving out of it. Then from beyond that I have other plans since I'm keeping it ...as of now lol