Code #P1537
- Thread starter Okiemark
- Start date
Did you check for vacuum at the IMRC vacuum line? 
Idle the car, rev it up past 3250 and see if the vacuum line in the picture has vacuum by putting your finger on the end of it. If it does have pressure, then you know the solenoid is working. If not, then you'll have to back track from there.
Idle the car, rev it up past 3250 and see if the vacuum line in the picture has vacuum by putting your finger on the end of it. If it does have pressure, then you know the solenoid is working. If not, then you'll have to back track from there.At 3500 there is vacuum. i took the intake tube off and when its at 5000 RPM's the throttle body is only open a little? To me that isnt qute right. It should be open all the way right? Ive inclosed some pictures so you know what im seeing.
Throtle body at 5000 rpm same angle.
Throttle body closed at same angle
Throtle body at 5000 rpm same angle.
Throttle body closed at same angle
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that's kinda irrelevant because there isn't any load on the motor {free revving)
it doesnt take "much" throttle opening to bring the RPMs up very high.
Have someone press the gas pedal to the floor, then observe the throttle angle.
I'm fairly certian they will be open alot more than what you are seeing in the pictures.
And.. at 5500 RPM at WOT (driving down the road) I guarantee those blades will be open further
good job with the pics though.
looking at the "gunk" around the throttle plates, I cant really imagin that IMRC's not being in a similar condition.
wish I could give more help, maybe another couple of shots of seafoam?
on my 95 the imrcs were held open by springs, and pulled shut with engine vacuum.
the 96's were a weird year for many parts..so I cant say zactly how yours work.
looking at the "gunk" around the throttle plates, I cant really imagin that IMRC's not being in a similar condition.
wish I could give more help, maybe another couple of shots of seafoam?
on my 95 the imrcs were held open by springs, and pulled shut with engine vacuum.
the 96's were a weird year for many parts..so I cant say zactly how yours work.
Yea. Ive been cleaning em up all day. With the seafoam, should i send it thru the vacuum line that goes directly to the imrc's or what? If that might clean em up a little bit then ill do that. Just maybe an ounce or so thru it? Id really love to not have to take my intake off and replace the imrc's. If itll hold out til i can get my other engine pulled and what not then ill just do it later but if not then ill go ahead and do it. GEEZ why do i have to have a 96?
DO NOT put SeaFoam in those vacuum lines!
Run SeaFoam through the vacuum line on the PCV or if you have a small nipple on top of the PCV use that because it will suck it in slower.
Do a search.......
http://www.lincolnsclub.org/vbulletin/showthread.php?t=20442&highlight=seafoam
He is right about the throttle body, a free revving engine does not need much air to rev up to 5K rpms. It will open up more depending on the load on the engine.
Its best NOT to run the engine with the intake tube off because you'll throw some engine codes and the ECU will freak out.
You say you're getting vacuum at the line to the IMRC, that means that the solenoid is good. It also means your IMRC is sticking/broken. You may be able to move it by hand, but it still could be kinda stiff. Do a couple of SeaFoams, clear the codes, and re-check it.
Run SeaFoam through the vacuum line on the PCV or if you have a small nipple on top of the PCV use that because it will suck it in slower.
Do a search.......
http://www.lincolnsclub.org/vbulletin/showthread.php?t=20442&highlight=seafoam
He is right about the throttle body, a free revving engine does not need much air to rev up to 5K rpms. It will open up more depending on the load on the engine.
Its best NOT to run the engine with the intake tube off because you'll throw some engine codes and the ECU will freak out.
You say you're getting vacuum at the line to the IMRC, that means that the solenoid is good. It also means your IMRC is sticking/broken. You may be able to move it by hand, but it still could be kinda stiff. Do a couple of SeaFoams, clear the codes, and re-check it.
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Thanks for the update!
keep us posted if you dont mind
glad to hear that it's worked.. "so far"
It came back today. I was at a stoplight across from my friend in his bmw and we took off and she kinda bogged down a little bit and when i got offa it in 2nd gear and looked down the CE light was on. Got to his house and it was the same code. Any other advice on how to solve this?
Clear the code and drive it.. see how long it goes before it comes back on again.
You got 7 days before it came back, lets see if this was a fluke or if it's re-ocurring.
The code sets once the IMRC controller reports they have stuck 3 times.
I'm wondering of the IMRC's are sticking or if the controller is taking a dump.
all the seafoam in the world wont solve the controller taking a dump.
but more seafoam might help clean up the stuck IMRC IF it's indeed stuck.
I'm not saying buckets of seafoam, but if they were really really dirty.. they might stick again.
if your mechanically inclined, pull the intake an visually inspect the IMRC's, remove and clean them...
THEN if the code comes back you know its a controller issue and not a mechanical problem.
I know you dont want to pull the intake..
For what its worth.. my car is giving me "bank 1 stuck closed" p-1519, so I'm faced with the same delimma..
I can manually move the IMRC's no problem.. I'm leaning towards a "controller" issue with mine.
You got 7 days before it came back, lets see if this was a fluke or if it's re-ocurring.
The code sets once the IMRC controller reports they have stuck 3 times.
I'm wondering of the IMRC's are sticking or if the controller is taking a dump.
all the seafoam in the world wont solve the controller taking a dump.
but more seafoam might help clean up the stuck IMRC IF it's indeed stuck.
I'm not saying buckets of seafoam, but if they were really really dirty.. they might stick again.
if your mechanically inclined, pull the intake an visually inspect the IMRC's, remove and clean them...
THEN if the code comes back you know its a controller issue and not a mechanical problem.
I know you dont want to pull the intake..
For what its worth.. my car is giving me "bank 1 stuck closed" p-1519, so I'm faced with the same delimma..
I can manually move the IMRC's no problem.. I'm leaning towards a "controller" issue with mine.
yea i know what u mean. i took it out thismorning and it came right back on.I did this about 5 times with the same outcome. so ima seafoam it agian and see what it does. I really dread pulling the intake but it looks like an eventuality in both yours and my case. I got to reading up on it and theres alotta stuff you fotta take off before you can get it off. Not quite as easy as a carbed 350 but i think ill manage. just gotta get all the gaskets and what not.