solvibe

Lately I have been having starting problems, its starts but the rpms fluctuate a little and then stalls, usually when this happen I’ll riv the engine a bit to keep the rpms higher then throw it into drive, after it goes there is not a problem when idle or come to a light but only when starting. It seems it’s been happening more.

Now to the issue at hand today when leaving walmart I had the same problem so I rived and put it into drive, but this time my check engine light came. I drove to AutoZone and pulled the following codes in the order listed:


P0301
71
Cylinder 1 Misfire

P0302
72
Cylinder 2 Misfire

P0304
74
Cylinder 4 Misfire

P0305
75
Cylinder 5 Misfire

P0300
—
Random Misfire

&
P1399
Manufacture controlled ignition switch or misfire

Before I take it to the dealer or not? I would like to be a little prepared and maybe have an idea as to what might be wrong. What’s your say on it?

FISHYTL

it could probably be the spark plugs

optomos

DTC P0300 SET WITH DTC P0301, P0302, P0303, P0304, P0305 OR
P0306: RANDOM MISFIRE
NOTE: If misfire is in one cylinder only, see DTC P0301, P0302,
P0303, P0304, P0305 OR P0306: MISFIRE IN ONE CYLINDER.
NOTE: If DTCs P0107, P0108, P0131, P0132, P0171, P0172, P0401,
P0505, P1128, P1129, P1259, P1361, P1362, P1366, P1367,
P1491, P1498 and/or P1519 is set, trouble shoot those DTCs
before trouble shooting random misfire DTCs.
1) If DTC P0300 is set with DTC P0301, P0302, P0303, P0304,
P0305 or P0306, check for:
* Insufficient fuel pump flow or pressure.
* Clogged or leaking fuel feed line.
* Clogged fuel filter.
* Fuel pressure regulator stuck open.
* Ignition coil wire open or leaking.
* Ignition control module malfunction.
* Carbon deposit on valves.
* Low engine compression.
* VTEC system malfunction.
* Fuel octane level less than specification.
Repair as necessary. If no problems are found, go to next
step.
2) To determine conditions during which misfire occurs, test
drive vehicle. Based on these conditions, test vehicle in order
described in random misfire trouble shooting table. If misfire is
intermittent or does not recur during test, check for improper fuel
octane level (less than specification), or carbon deposits on spark
plugs.
DTC P0301, P0302, P0303, P0304, P0305 OR P0306: MISFIRE IN
ONE CYLINDER
NOTE: If misfire is random, see DTC P0300 SET WITH DTC P0301,
P0302, P0303, P0304, P0305 OR P0306: RANDOM MISFIRE.
NOTE: If DTCs P0131, P0132, P0171, P0172, P0401, P1361, P1362,
P1366 and/or P1367 is set, trouble shoot those DTCs before
trouble shooting random misfire DTCs.
1) Start engine and listen for clicking sound at fuel
injector in suspect cylinder. If injector clicks, go to next step. If
injector does not click, check for open or short in harness between
suspect fuel injector and PCM. See WIRING DIAGRAMS article. If wiring
is okay, replace fuel injector, and recheck. If symptom or DTC is
gone, replace original fuel injector. If DTC resets, substitute a
known-good PCM and recheck. If symptom or DTC is gone, replace
original PCM.
2) Check freeze frame data. Perform PCM reset procedure and
clear freeze frame data (if present) and DTC(s). See PCM RESET
PROCEDURE/CLEARING CODES under SELF-DIAGNOSTIC SYSTEM. Exchange spark
plug from suspect cylinder with one from another cylinder. Connect SCS
service connector. See Fig. 1. Test drive vehicle several times in
freeze frame data range. If there is no freeze frame data of
misfiring, test drive vehicle under various conditions and try to
duplicate malfunction. If DTCs P0301, P0302, P0303, P0304, P0305,
P0306 or temporary DTC P1399 are set, go to next step. If DTCs P0301,
P0302, P0303, P0304, P0305, P0306 or temporary DTC P1399 are not set,
problem is intermittent, possibly due to fouling spark plug. Misfire
is not detected at this time. If misfire follows spark plug to
different cylinder, replace spark plug. If misfire remains in same
cylinder, go to next step.
3) Exchange fuel injector from suspect cylinder with one from
another cylinder. Let engine idle for 2 minutes. Test drive vehicle
several times in freeze frame data range. If there is no freeze frame
data of misfiring, test drive vehicle under various conditions and try
to duplicate malfunction.
4) If DTC P0301, P0302, P0303, P0304, P0305 or P0306 is not
indicated, misfire condition is not detected at this time. Possible
intermittent fuel injector poor connection. If misfire follows
injector to another cylinder, replace faulty fuel injector. If misfire
remains in same cylinder check valve adjustment, cylinder leak down,
engine compression and Crankshaft Position (CKP) sensor. Repair as
necessary.

This is from a 99TL service manual and it does not have the P1399 code. Don't know why.

INSPIRE 32V

iTrader: (1)

believe it or not i bought my 2000 tl from the guy like a month ago. the car was driven perfect. than my brother got the engine oil changed. and than suddenly the car started to do what yours is doing . i couldnt understand WTF happened. i went to shop after shop paying for stupid engine diagnoses. and first guy said that your coil # 3 & 5 are miss fireing. and the oxygen senser is bad.ok than a secound shop said coil # 1,3,4,5, is bad and the oxygen senser and the cat is bad. ok than i started to check on line and found the site. and just randomly read that use mobil 1 5w20 or 5w30. so i started to wonder that the only thing which i did was changed on the car was the engine oil. so i called my bro and he told me that the shop where he got the oil changed from said that since the car has more than 100.000 miles the best oil would be 10w40 so he said ok. i went to pepboys right away and got the oil changed to 5w30. and the engine light went away after driveing for like 2 miles and the car drives perfect. sorry for such a long message.

INSPIRE 32V

iTrader: (1)

oh by the way i recently went to the first shop i went to diagnos the car and they said even though your check engine light is not on and u dont feel any changes driven. the computer still says the your ignition coils are randomly misfireng. so get new coils

nortondlcl

I replaced coils spark plugs nothing worked!
Check this out All i did was cleaned both 02 senors. FIXED!