Welcome to Ultimate Subaru Message Board, my lurker friend!
|Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.
We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!
Serving the Subaru Community since May 18th, 1998!
Help!! Timing problems!!!
Posted 13 October 2004 - 01:29 AM
1.8L EA82 MPFI (from 1988 XT, i believe)
Original Enginge - 1.8L EA82Turbo
Just installed new timing belts, and have everything lined lined up with the timing belts (Flywheel marks and cam shaft pullies).
Set the timing on the engine 20 B with green connectors behind dash together, but timing does not change when conectted.
Car runs good!!! After driving for a while, the car looses power and does not accelerate. There is a backfiring on downshift. When geting back and checking the timing, I can not even see a degree mark!
Once the car cools, it will run well, and the timing in OK.
Other recent work:
Front CV boots x 4
Exhaust manifold gaskets
New cap & rotor
Disty bolts are tight.
Error codes: 22, 32, 33, 35, 42, 51
Is code 33 a normal code because the car is not moving?
Is code 51 a normal code since the car is in neutral?
Car ran at a high idle (1250rpm) before starting. When tuning, lowered the idle to the Factory Rec. of 700rpm. Set timing to 20B.
Posted 13 October 2004 - 08:03 AM
Posted 13 October 2004 - 10:08 AM
Posted 14 October 2004 - 04:06 PM
Checked the TPS andindicates as follows:
Ohms on lead 1 and 2 is only 1.4.
Ohms on lead 1 and 3 with throtle closed is 9.??.
Ohms on lead 1 and 3 with throtle open is 2.???
I think it is bad.
Also, One of the grounds on the MAS indicates that I have a bad ground. The manual indicates to start looking at the intake manifold for possible bad ground....I do not see any ground wires directly to the intake manifold. Any ideas where it is located?
Posted 14 October 2004 - 04:43 PM
also - a few years ago my TPS was causing drivability problems. i swapped out the TPS....still wasn't working right. i noticed that if i flexed the wires prior to the TPS, the motor would stall, rev up, idle crazy, idle correctly....it was all over the place as i flexed the wires. i spliced in a new wiring harness with as much new wire as i could get and it fixed it.
good luck and hopefully someone know if the TPS on the EA82 is the same as the XT6.
Posted 14 October 2004 - 05:17 PM
Posted 18 October 2004 - 09:13 PM
Not the CTS - Removed and tested OK!
Still have Q's about the MAF sensor.
BR - less than 10 ohms
B - 70 + ohms
Tested B back to the ECM. Tested OK. .3 ohms between
ECM and MAF.
*When the car is cold, and the green connector is connected, there is a noticable change in the timing. When the engine is warm there is not a change at all.
Posted 20 October 2004 - 09:56 PM
Posted 25 October 2004 - 04:52 PM
I fixed the wire for the O2 sensor, but it seems the O2 sensor is bad. The voltage is not changing up and down as the repair manual states it should. Voltage on the sensor starts OK .45v but continues to drop lower and not vary back and forth between .45 and .55v. Looking to replace the O2 sensor.
Found the problem as to the high resistance in the Black lead on the MAF. It seems that the ECM fried the ground circut. Jumped the ground wire (ECM wire 5) and the car immediately ran better, but the MAF is still not within specifications on the SA terminal. Base voltage should be 1 - 2v, but I am getting a base voltage of 2.5v. Other than the high voltage just stated, the MAF tested OK.
Does anyone know what this will cause?
Also, all codes with the exception of the Knock sensor (code 22) have been cleared, but this is expected as the XT motor does not have a knock sensor. Might look to add one, any ideas how?
Posted 25 October 2004 - 04:56 PM
Posted 26 October 2004 - 03:03 AM
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users