prelude h22a4

Just got my wife a 98 accord j30a1 ran good but two days ago while i was at work my son drove it ( says didnt run to hell ) well now it seems to b stuck in second & if i cut key off and restart it will go in rev. It kinda slips on and out codes 1-2, 7, 7-1, 7-2, 7-3, 7-4, 7-5, 7-6, 8 WTF I do most all my mechanic work and i dont know where to even start HELP

prelude h22a4

Forgot to mention car is a 98 accord ex w/ j30a1

MAD_MIKE

OBDI codes are still fairly basic, it would be best to use an OBDII code reader.

12- EGR lift insufficient/voltage output high
7- TPS Voltage High/Low
71-76- Random misfire on Cylinders 1-6(this would be caused by insufficient EGR lift, a lean misfire)
8- Top Dead Center sensor malfunction, intermittent or no signal.

Proper OBDII codes would greatly help out.

I would suspect a ground may have come loose or broken. Check the engine wire harness for any damage, check the grounds are all intact, clean and tight.

prelude h22a4

These odb2 codes p0401, p0420, p0730, p1399, p1491, p1498, p1705, p1739 . Got these codes from autozone he mentiond the misfire codes to but didnt write those down

MAD_MIKE

P0401- Exhaust gas recirculation(EGR) Insufficient flow
Most likely a blocked EGR port.

P0420- Catalyst system efficiency below threshold.
If the emissions system(EGR) is faulty this will cause this code. Ignore this until all other engine codes are fixed.

P0730-Shift Control system
Hydraulic side of transmission.

P1399- no code. Are you sure it wasnt P1359(8)? Crankshaft Position(CKP)/Top Dead Center(TDC) Sensor Circuit Malfunction.

P1491- EGR valve, insufficient lift.

P1498- EGR Valve position sensor circuit high voltage.

P1705- Transmission Range Switch short to ground.

P1739-3rd Clutch Pressure Switch

Check the passenger side footwell for any damage to the floor, pull the carpet back and see if the wire harness going to the PCM is damaged/water logged/etc. Ask your son if he went through a large puddle or snow drift.
2nd gear is default limp mode when there are multiple problems.

prelude h22a4

Thanks Mike il check that out im morn. A man has had a rough week lost my job due to snow and not being able to make it there anyway . Seems like every time my son gets in a car it gets fucked up again Thanks man il check that out

prelude h22a4

One more thing in order to get in rev you have to cut key off & restart then will go into rev

MAD_MIKE

Do you mean the shifter interlock? As in you cannot select Reverse. Or the shifter is in Reverse but does not move?

prelude h22a4

That guy at autozone must have wrote # wrong(p1399) i say this because the #8 code i got off the car TDC sensor

prelude h22a4

ONo the shifter feels like new but in order to backup car man has to cut of restart and only then will it go into rev

prelude h22a4

Mad man mike i did a lil research i believe that p1399 is a random cylinder misfire code... said would b caused by restricted egr flow just like mad mike said

MAD_MIKE

Mea cupla, P1399 is the the temporary code(which causes the flashing) for misfire the stored code is usually P0300-P030* depending on which cylinder is misfiring.
So you can place the shifter into R with no problems, but the transmission does not engage reverse? What happens if you leave the engine running, shift down to D1 and then back up to R? Does the transmission still not engage?

On the 98-02 ATs Reverse does need the shift solenoids to actuate to work, P1705 may be the reason it is not working.

Have you checked the transmission range sensor/switch on the side of the case? Is it damaged? Is the wire harness damaged?

prelude h22a4

The only way to get in rev is after you first start car once u move gear shifter in to d,1,2,3 you have to cut car off and restart. Going foward it has 1st & 2n. After you have went foward fast enough to switch to 2nd then when u stop it will go back to first but its like u have to slip it out of 2nd by hitting gas car will move then the rpm goes up when outbof gear then when rpm comes down a lil then it will slam into 1st. Thanks for any help in addvance i know d b h k series pretty well in and out but im a virgin anything j series

MAD_MIKE

Do you have an FSM for the 98-02 Accord?

prelude h22a4

What exactly are you talking about? Sorry my gmail was messd up didnt kno ne one had wrote

prelude h22a4

Oh dumb *** me yea a manuel sure do got it a month ago or so

prelude h22a4

I drove car yday and still wont shift to d3 or 4 will start in 1s then run in limp mode 2nd will slip out of gear and rev up then BAM your back in gear. I think something bad is wrong guy. Theres a nice rebuild FAQ that is starting to look like good option im in east tenn bty

MAD_MIKE

What codes are still present?

prelude h22a4

Il get back to you on that after lunch today almost 8 am now. After i clean all the engine grounds & tested gps yday i put back together and tried to drive and it untill it got warm went through all the gears but after heated up to opp temp back to 2nd. It dosent pull now either more like a d15 power. Found metal in atf man gave up and chalked up to rebuild. I will reset and run again like you asked me to in a bit. Thanks

MAD_MIKE

If while selecting D3 and D4 you have no continuity for pins 6 and 7 then the PCM will not know you are selecting those gears.
Verify the pins are not corroded or dirty, if not and the range switch is faulty replace.

If the fluid has never been replaced it will have a slurry feel to it, especially the gunky in the sump, and on the drain plug.