Valve/engine woes. Should I call it a day?

Thanx ... my concern now is that the SOHC engine is from a 2001 Impreza ... which I looked up online ... it's Intake volume is regulated by the use of a MAP sensor, unlike the EJ253 (which I had) which uses a MAF sensor. If I understand your previous post, as long as I get a SOHC "long block" use my intake manifold I should be golden ... does the sensor become a mute point then?

It ain't over yet ....

Replies to this message:

xwesx (Aug 11, 2009 4:44 pm)
- tbird69 (Aug 11, 2009 4:50 pm)
- tbird69 (Aug 21, 2009 5:33 am)
  - xwesx (Aug 21, 2009 11:44 am)

#37 of 44 Re: NAKED without my Forester [tbird69] by xwesx

Aug 11, 2009 (4:44 pm)

Replying to: tbird69 (Aug 11, 2009 3:18 pm)

If the mechanical portions of the engine are identical (crankshaft/pistons, camshaft, etc) and the ports match up to the parts you have, if you install all of your own components on the engine block including sensors, you should have no problems as a result of sensor/computer incompatibility. If something is different, your woes are likely to continue.

If the replacement engine is not overhauled, be sure to check for head gasket problems before you install it! No reason to move from one headache to another.... or tear the engine out of the car yet again!

Replies to this message:

tbird69 (Aug 11, 2009 4:50 pm)
tbird69 (Aug 21, 2009 5:33 am)
- xwesx (Aug 21, 2009 11:44 am)

#38 of 44 Re: NAKED without my Forester [xwesx] by tbird69

Aug 11, 2009 (4:50 pm)

Replying to: xwesx (Aug 11, 2009 4:44 pm)

Thanx .. I'll keep ya posted ... Peace,
Tbird

#39 of 44 Re: NAKED without my Forester [xwesx] by tbird69

Aug 21, 2009 (5:33 am)

Replying to: xwesx (Aug 11, 2009 4:44 pm)

so here's the new twist ... was ably to switch engines at junkyard... it's installed ... now we get the AT Oil Temp light flashing and check engine light on .. plus tranny is stuck in one gear ... the code is 1705 , at least that's what they told me ....2 other points ....

mechanic didn't use my intake manifold, the one on the junkyard engine connected all but on sensor on intake ... mmmmm a clue perhaps .... I was also wondering if that AT oil screen needed to be changed .... years ago I remember that being a simple fix when you thought you had major problems ... any thoughts!!!
Thanx!! been 5 weeks without car now .. good thing I use a bicycle alot

Replies to this message:

xwesx (Aug 21, 2009 11:44 am)

#40 of 44 Re: NAKED without my Forester [tbird69] by xwesx

Aug 21, 2009 (11:44 am)

Replying to: tbird69 (Aug 21, 2009 5:33 am)

Why did he not use your intake? That could very well be the source of problem, at least on the P1705 code.

Here is information on that, located at this website.

P1705 excessively high or low voltage input from TPS sensor

When testing a tps sensor code like this P1705 code, check the signal wire voltage for any signs of glitch. This can be done manually without running the engine. With key on engine off, monitor the signal wire voltage from idle (close throttle) and up to high idle (WOT or wide open throttle position) by moving the throttle linkage. The transistion from idle to high idle should be reflected in the voltage readings like a gradually increasing pattern. If there is a sudden change or a glitch, replace the TPS sensor. Please note also that a regular tps sensor usually has 3 wires: a voltage reference wire, a signal wire and a ground wire. Except the signal wires, the other 2 wires should have steady voltage readings regardless of the throttle linkage position.

For advance testing, garages can usually monitor the voltage of the TPS signal wire while the engine is running. Using a special scanner, the voltage can be watched while cruising in order to see if the value of the signal wire voltage will change. This is particularly important if the code P1705 only appears intermittently. For precaution, check the integrity of the signal wires from the TPS sensor plug-in up to 12 inches away. To do this, splice the wiring harness and check if there is any short (bump) in the signal wire which could be rubbing metal before this code came on.

With regard to the AT Oil Temp light and non-shifting, I wonder if there is a connector not properly seated on the transmission - it sounds to me like the engine control module and transmission control module are not talking! They have to talk if you want the tranny to shift out of 1st. By default, it will work in P, R, N, and 1 without input from the engine control module, but that unit tells it when/if to up or down shift through the other forward gears.

#41 of 44 Re: Valve/engine woes. Need advice. [heroine] by maryb03

Sep 23, 2011 (1:10 pm)

Replying to: heroine (Oct 28, 2008 4:09 pm)

I am having this same problem on a brand new 2011 subaru forester. The check engine came on the night I drove it off the lot and has come on 6 times in the 3 weeks that I've had it. It is engine misfire trouble codes P0302 and P0304. They don't know how to fix it. I sent in my lemon law letter and I am trying to get them to replace the car with another one.

Replies to this message:

bwyrosdick (Feb 21, 2012 9:21 pm)

#42 of 44 Re: Valve/engine woes. Need advice. [maryb03] by bwyrosdick

Feb 21, 2012 (9:21 pm)

Replying to: maryb03 (Sep 23, 2011 1:10 pm)

I am having the same issues with the check engine lights due to misfires as well as numerous transmission issues with no codes showing problems. I am now requesting a repurchase.

#43 of 44 Transmission and Check Engine light issues. by bwyrosdick

Feb 21, 2012 (9:29 pm)

I have a 2011 Forester auto and traveling up hill it surges and shakes before downshifting. It also feels like it slips into neutral before hitting the lower gear really hard at low speed city driving. The computer is not showing any problems with lights or codes about the transmission and the dealer has had it 6 times attempting to resolve this issue with no luck. I say LEMON!

#44 of 44 Re: Valve/engine woes. Need advice. [heroine] by deeque

Oct 08, 2012 (9:29 pm)

Replying to: heroine (Oct 28, 2008 4:09 pm)

My less than 1 year Forester has been in 4 times for misfires. Each time, the dealership tells me it is for a different reason.
The Lemon law in California states that if it is brought in for four times for the SAME thing.
I have secured an attorney to deal with Subaru.

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