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p1237 boost pressure, intercooler or fuel filter

cobanstine

cobanstine

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Location
Leeds
Car
Accord 2.2 53
Hello People

I been hit with a string of problems after a little bump I had. (Wasn’t paying enough attention and scraped a lamppost in the dark where electricity was out on the street)

I got the bodywork repaired through a supplier that’s contracted by my company (we deal with fleet management and pay as you go hire) They fixed it and patched up some holes on intercooler as it got moved when I impacted. After that I always heard a hiss. But car was driving pretty normal for last month or so…

So I thought I’d take it to my local Honda specialist to do the service and have a look at this noise. (I supplied the parts on oil all from HH and Lubetec)

Mechanic took the car as he lives near me and brings it back after he serviced it. After I started driving, noticed there wasn't much kick to the car thought might just need warming up and breaking in. So I got on m606 to get to m62 towards Manchester and as soon as I started to speed up on motorway it went in limp mode and the coil started flashing)

Got home ran my bluetooth obd diagnostics and got the code P1237. Checked up on here people are saying fuel filter. Phoned my mechanic and told him to check that. They picked it up this morning and ran their diagnostics and saying it’s to do with boost pressure. I don’t know what they did but they cleared the code. Not sure if they checked the FF

So I got home and decided to take it for a spin just now. I let the car warm up and It seemed a bit more responsive compared to yesterday and was reaching about 70 – 80 turbo still felt a bit off. Then reached a bit of uphill and thought I’d push it again. And now it’s gone in limp mode again and i'm not sure what the problem is. It’s still hissing and the mechanics said they checked all the pipes and inter-cooler and couldn't find the hiss.

I’m not sure what to think I’m doubting my mechanic as he’s saying it’s not the fuel filter. But not sure what to do. Would appreciate any advice

Thanks in advance
 
I can't see how P1237 can have anything to do with the fuel filter... http://www.micro-tronik.com/faultcodes/obdiifaultcode_p1237.html ...fault codes asociated with a restricted fuel filter are usually P1065 and/or P0087. I think you have a leaking intercooler or boost pipework.
 
Jon_G said:
I can't see how P1237 can have anything to do with the fuel filter... http://www.micro-tronik.com/faultcodes/obdiifaultcode_p1237.html ...fault codes asociated with a restricted fuel filter are usually P1065 and/or P0087. I think you have a leaking intercooler or boost pipework.
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Hi Jon thanks for your response, I got suspicion on fuel filter just searching on a few posts here. But it's a bit of a coincidence the problem kicked up now after the service. I driven over 250 miles after the bump with the hissing (if that is the leak).
 
Jon_G said:
I can't see how P1237 can have anything to do with the fuel filter... http://www.micro-tronik.com/faultcodes/obdiifaultcode_p1237.html ...fault codes asociated with a restricted fuel filter are usually P1065 and/or P0087. I think you have a leaking intercooler or boost pipework.
Click to expand...


I would go along with that to pipe leaking
 
Gah, the P1237 code. You have a low boost problem, noting to do with a fuel filter I'm afraid. Somewhere in the pipework you've a leak OR (and this is a possible error) there's a problem with the EVR value. This controls the turbos vanes and ultimately the available boost.

Since you can hear a hissing, you definitely have a leak. You shouldn't hear any hissing from the wind-up. I would imagine the leak is still there, but you're not seeing it under normal pressure, you'll need to see the system under pressure, you find it. Not sure what you're mechanic used, but a bottle with water and some "fairy liquid" is a pretty effective leak detector ;)
 
jayok said:
Gah, the P1237 code. You have a low boost problem, noting to do with a fuel filter I'm afraid. Somewhere in the pipework you've a leak OR (and this is a possible error) there's a problem with the EVR value. This controls the turbos vanes and ultimately the available boost.

Since you can hear a hissing, you definitely have a leak. You shouldn't hear any hissing from the wind-up. I would imagine the leak is still there, but you're not seeing it under normal pressure, you'll need to see the system under pressure, you find it. Not sure what you're mechanic used, but a bottle with water and some "fairy liquid" is a pretty effective leak detector ;)
Click to expand...

Strange enough i was looking at this youtube video earlier. Just strange that it happened after the service
 
Don't underestimate the power of fairy! :lol:

It could also be the EVR valve, but eliminate the hissing first!
 
I forgot to mention the hiss is coming from the passenger side of the car. I can only here it if i put the window down and the cars undergoing a fairbit of load. (can't replicate it when it's in limp mode)
 
Boost leak mate. And it must be a bad one if you can hear it.

Give Waqqy a call on 07565 649355, tell him Fahad sent you.

You will need to leave it with him, but he will check it thoroughly for you. Any issues, drop me a line and i'll speak to him for you.
 
Just an update. My mechanic took the car back and had another look and they found the problem. it was a pipe going to the turbo had a split and they replaced the pipe and got rid of the errorcode and the performance is back :) also they didn't charge me. Theres still that hiss though that comes from the passenger side when the windows down and under a fairbit of load
 
Glad you've got the boost back and she's running OK again!

I guess the hiss was unrelated to the bigger problem then? Be interesting to know what it is though... maybe tip soapy water over the intercooler and have a drive around... any leak should then become obvious.
 
Change your mechanic lol!!
 
It seems unrelated. Yeh cars back and fun to drive again!

Lol Fahad, I still need to give your guy a call. I hope hes patient enough to find the leak.
 
Hi my accord developed a p1237 error code. Just had stage 2 egr off done by F6had couple months ago and advised by him to replace exhaust mmanifold because of a crack. After I've replaced manifold car was sluggish on test drive and when i've tried to give it a push it went into limp mode and glow plug light started flashing. Replaced and bleed fuel filter with genuine bosh from honda dealer but it didn't cure the problem.
 
You've a boost leak/issue, check that the lines to/from the turbo, intercooler and the EVR was fitted correctly.
 
Would turbo solenoid cause this error? How to check it and what is correct turbo pressure on live data scanner?
 
Hi Igor - i would agree, P1237 would mean a boost leak somewhere. P1237 normally means that the Actual Boost is lower than Target. I know you did this manifold replacement yourself so you need to check over your work carefully i would say..
 
Freeze frame says 185 kpa that's 26 psi 3600 rpm and error pops out. What should be right pressure on live data?
 
Just an update - power is back. I have cleaned the turbo pressure sensor and glued back little filter on top of turbo actuator solenoid and sprayed little wd40 inside it. Now when I start the engine turbo actuator goes all the way up and stays that way when I rev the engine. Not sure what other actuator supposed to be doing when revving engine as it doesn't move.
 
WD40 fixes everything :lol:
 
Lolofigo said:
Just an update - power is back. I have cleaned the turbo pressure sensor and glued back little filter on top of turbo actuator solenoid and sprayed little wd40 inside it. Now when I start the engine turbo actuator goes all the way up and stays that way when I rev the engine. Not sure what other actuator supposed to be doing when revving engine as it doesn't move.
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Well done Igor - so it was the vanes were stuck??
 
Stevearcade said:
WD40 fixes everything :lol:
Click to expand...

Like that expression, all you need to fix stuff in is two things - WD40 and Duct tape.

If it doesn't move and it should - WD40
If it moves and it shouldn't - Duct tape
 
I think vanes were stuck in one position because of solenoid not moving them. I also cleaned that filter on solenoid. Just dismantled and washed it with soap and dried overnight. Other solenoid is gonna get same treatment when weather improves.
 
What does Ducktape and The Force have in common?

They both have a light side, a dark side and both bind the galaxy together :lol:
 
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