SOURCE: i have error codes of p1300,p1305, p1310, p1315,
P1300 = ignition system malfunction (#1 coil/igniter circuit fault)
P1305 = same as above but #2 coil
P1310 = #3 coil
P1315 = #4 coil
SOURCE: occasionally stall & engine check light on.code read p300 misfire
Sent is just now. Let me know if you get it. GLad to help, and Thanks for choosing FixYa!
SOURCE: I have a 2001 toyota
Hello
The OBD2 fault code you need to be concerned with is the P0304 (I would ignore the P1310,P1315 for now), this fault code indicates you have a engine Misfire in engine cylinder #4 at some time, this will be the hesitation you fell. I don't know the miles on the car but I would replace the spark plugs and the #4 Ignition Coil (this system has a separate igntion coil for easch cylinder), that should take care of the problem, it is the most common reason for this type of Hesitation. Clear the code after the pugs ands wires are replaced by disconnecting the negative cable of the battery for 5 minutes and drive it a few days to see if the problem is repaired. Below is a picture part number and price for a new ignition coil, it is located in the vlave cover and goes down into a well, the spark plug is at the bottom.
Here is the technical information on fault.
P0304 - Cylinder 4 Misfire Detected.
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/loss of power
- Hard start
- Engine hesitation
Possible causes
- Faulty spark plug 4
- Faulty ignition coil 4
- Ignition coil 4 harness is open or shorted
- Ignition coil 4 poor electrical connection
- Clogged or faulty fuel injector 4
- Injector 4 harness is open or shorted
- Injector 4 poor electrical connection
- Improper spark plug 4
- Insufficient cylinder 4 compression
- Incorrect fuel pressure
- Intake air leak
(parts price source is www.rockauto.com)
STANDARD MOTOR PRODUCTS Part # UF247 Price $73.89 USD
The spark plug number you need is:
DENSO Part # 3120 Price $1.47 each (4 required)
Spark Plug Gap 0.044"
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