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1301 and 1302 CEL and car dies

8K views 45 replies 12 participants last post by  bboixtc 
#1 · (Edited)
Help! I was driving on the highway when suddenly the car barely accelerates and I see a flashing CEL. I keep pressing the gas and it doesn't want to move. I slowly decelerate to 30mph and slowing despite how much gas I give it and which gear I drop it to. Once I pull off the highway the car shuts off on its own.

I happen to have a code reader and pulled 1301, 1302, and 0302. I don't even know where to begin to diagnose this issue. When I try to start the car it just dies.

Luckily I wasn't too far from home and I was able to start the car, give it a ton of gas and stay less than 20mph and 2k and crawl home. The car is noticeably louder.

I just started it again in my garage an hour later and there's a strong scent of fuel.

Before all this I was getting a p0172, but I was told I could send the ECU to vision function and get it re-flashed.

I currently have the VF2 Supercharger in and the previous owner had the head done by JCR (option 2), if that helps.

Pics of coils and spark plugs below.
A video of me starting it a few hours later:

 
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#3 ·
I just checked them. The car has about 15k on it and the coils are just covered in di-electric grease. 2-4 the grease was a little white but in the first one maybe a little dirty but no marks. I also checked the grounding point that's on the left side of the motor and it looked fine.
 
#5 ·
not likely, but checking is too easy:

Gas cap tight?

Dip stick firmly seated?

Check engine mgmt fuses.


Chicken soup = couldn't hurt.

I have to find list of codes...
 
#6 ·
The connector for the OBD-II scanner is under the dash, directly under the A/C module... If the check engine light flashes, that indicates a serious malfunction and the engine should be shut down. A steady check engine light indicates a less serious malfunction. I'm not sure if anyone has posted the full list of codes on LT, so here it is: EMP.1 -

DIAGNOSTIC TROUBLE CODE LIST DTC Fault description Page

P0011 Camshaft Position - Timing Over-Advanced or System Performance 4
P0012 Camshaft Position - Timing Over-Retarded 4
P0076 Intake Valve Control Solenoid Circuit Low 4
P0077 Intake Valve Control Solenoid Circuit High 4
P0101 Mass or Volume Air Flow Circuit Range/Performance 5
P0102 Mass or Volume Air Flow Circuit Low Input 5
P0103 Mass or Volume Air Flow Circuit High Input 5
P0106 Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance 7
P0107 Manifold Absolute Pressure/Barometric Pressure Circuit Low Input 7
P0108 Manifold Absolute Pressure/Barometric Pressure Circuit High Input 7
P0111 Intake Air Temperature Sensor 1 Circuit Range/Performance 8 P0112 Intake Air Temperature Sensor 1 Circuit Low 8
P0113 Intake Air Temperature Sensor 1 Circuit High 8
P0116 Engine Coolant Temperature Circuit Range/Performance 10 P0117 Engine Coolant Temperature Circuit Low 10
P0118 Engine Coolant Temperature Circuit High 10
P0121 Throttle Position Sensor 'A' Circuit Range/Performance 12
P0122 Throttle Position Sensor 'A' Circuit Low 12
P0123 Throttle Position Sensor 'A' Circuit High 12
P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) 14
P0131 O2 Sensor Circuit Low Voltage (Pre Catalyst) 15
P0132 O2 Sensor Circuit High Voltage (Pre Catalyst) 15
P0133 O2 Sensor Circuit Slow Response (Pre Catalyst) 15
P0134 O2 Sensor Circuit No Activity Detected (Pre Catalyst) 15
P0135 O2 Sensor Heater Circuit (Pre Catalyst) 15
P0137 O2 Sensor Circuit Low Voltage (Post Catalyst) 18
P0138 O2 Sensor Circuit High Voltage (Post Catalyst) 18
P0139 O2 Sensor Circuit Slow Response (Post Catalyst) 18
P0140 O2 Sensor Circuit No Activity Detected (Post Catalyst) 18
P0141 O2 Sensor Heater Circuit (Post Catalyst) 18
P0171 System Too Lean 20
P0172 System Too Rich 20
P0201 Injector Circuit/Open – Cylinder 1 21
P0202 Injector Circuit/Open – Cylinder 2 21
P0203 Injector Circuit/Open – Cylinder 3 21
P0204 Injector Circuit/Open – Cylinder 4 21
P0300 Random/Multiple Cylinder Misfire Detected 22
P0301 Cylinder 1 Misfire Detected 22 P0302 Cylinder 2 Misfire Detected 22 P0303 Cylinder 3 Misfire Detected 22 P0304 Cylinder 3 Misfire Detected 22 P0324 Knock Control System Error 24
P0327 Knock Sensor 1 Circuit Low 24
P0328 Knock Sensor 1 Circuit High 24
P0335 Crankshaft Position Sensor “A” Circuit Range/Performance 25 P0340 Camshaft Position Sensor “A” Circuit 26
P0351 Ignition Coil “A” Primary/Secondary Circuit 27
P0352 Ignition Coil “B” Primary/Secondary Circuit 27
P0353 Ignition Coil “C” Primary/Secondary Circuit 27
P0354 Ignition Coil “D” Primary/Secondary Circuit 27 m
P0420 Catalyst System Efficiency Below Threshold 28
P0441 Evaporative Emission System Incorrect Purge Flow 29
P0442 Evaporative Emission System Leak Detected (small leak) 29
P0444 Evaporative Emission System Purge Control Valve Circuit Open 31 P0445 Evaporative Emission System Purge Control Valve Circuit Shorted 31
P0446 Evaporative Emission System Vent Control Circuit 31
P0447 Evaporative Emission System Vent Control Circuit Open 31
P0448 Evaporative Emission System Vent Control Circuit Shorted 31 P0451 Evaporative Emission System Pressure Sensor/Switch Range/Performance 31
P0452 Evaporative Emission System Pressure Sensor/Switch Low 31 P0453 Evaporative Emission System Pressure Sensor/Switch High 31 P0455 Evaporative Emission System Leak Detected (large leak) 29
P0456 Evaporative Emission System Leak Detected (very small leak) 29 P0461 Fuel Level Sensor “A” Circuit Range/Performance 32
P0462 Fuel Level Sensor “A” Circuit Low 32
P0463 Fuel Level Sensor “A” Circuit High 32
P0480 Fan 1 Control Circuit 33
P0481 Fan 2 Control Circuit 33
P0500 Vehicle Speed Sensor “A” 34 P0506 Idle Air Control System RPM Lower Than Expected 35
P0507 Idle Air Control System RPM Higher Than Expected 35
P0508 Idle Air Control System Circuit Low 35
P0509 Idle Air Control System Circuit High 35
P0562 System Voltage Low 36
P0563 System Voltage High 36 P0601 Watchdog 37
P0606 Checksum 37 P0627 Fuel Pump Control Circuit /Open 38 P0646 A/C Clutch Relay Control Circuit Low 39
P0647 A/C Clutch Relay Control Circuit High 39
P1301 Misfire level causing emissions increase 40
P1302 Misfire level causing catalyst system damage 40
P2602 Coolant Pump Control Circuit Low 41
P2603 Coolant Pump Control Circuit High 41
P2646 A Rocker Arm Actuator System Performance or Stuck Off 42 P2647 A Rocker Arm Actuator System Stuck On 42
P2648 A Rocker Arm Actuator Control Circuit Low 42
P2649 A Rocker Arm Actuator Control Circuit High 42
/ message sig
__________________
 
#8 ·
elsewhere too:


Main fuse box
Slot Rate Circuit
1 20A Aux pwr socket
2 5A Reverse lamps
3 20A Driver’s window
4 20A Pass. window
5 10A Stoplamps
6 7.5A Turn indicators
7 10A Ignition services
8 7.5A Battery services
9 15A Hazard lamps
10 7.5A Horn
11 10A Alarm pwr, interior lamp
12 10A ABS
13 3A ECU Ignition
14 20A Rad. fans; 1&2 slow, 1 fast
15 7.5A Radio, switch pack module
16 10A Parking lamps
17 10A Dip beam LH
18 10A Dip beam RH
19 20A A.C. comp. relay, rad fan 2 fast
20 15A Main beam LH
21 15A Main beam RH
22 7.5A CDL

Engine Compartment Fuses
Fuse Rating Circuit
R1 20A Fuel pump
R2 3A Immobiliser
R3 5A Alternator sense
R4 5A ECU battery feed
R5 5A O2 heaters
R6 7.5A VSV's VVT, VVL, IAC
R7 10A Injectors, ignition coils
R8 5A Re-circ. pump

Footwell Fuses
Fuse Rating Circuit
C1 20A Interior fan
C2 15A Wiper motor
C3 7.5A Audio key-in
C4 7.5A A.C. compressor
 
#12 ·
Yeah I know what they are, thank you, but I'm just stuck on how to diagnose the issue. I checked the coils and plugs as mentioned earlier and posted pics. I checked the ground on the left side of the motor and fuses. Those were fine. I guess what's next is to pull the valve cover and hope all is well.

I cleared the codes, started it up and the idle was at normal rpm for being cold but the car was shaking a bit and didn't feel right. I still smell a strong fuel scent. When I rev'd it a little it sounded horrible. I'll post a video shortly.

I checked the plugs to the coils and to the injectors and they seemed fine as well.
 
#17 ·
Not what I wanted to hear. =[

Pull your valve cover off and check for a wiped intake high cam lobe or any broken rocker arms. Also check connectors for injectors. Tommy
I'll try and check tomorrow or sometime next week. The connectors for the injectors seem fine. I'll double check again when I get back to my parents house. It's currently 40 degrees and I left the car back upstate.

Also any fuel around the rail or injectors? Maybe an o ring or isolator went bad. The ticking is what concerns me most.
I can't really tell with the harness and everything in the way. Which O ring or isolator? Could it be simply replaced? Or is the ticking another thing entirely even if that were the case?
 
#15 ·
Pull your valve cover off and check for a wiped intake high cam lobe or any broken rocker arms. Also check connectors for injectors. Tommy
 
#16 ·
Also any fuel around the rail or injectors? Maybe an o ring or isolator went bad. The ticking is what concerns me most.
 
#18 ·
Sounds like it is running on 3 cylinders to me. Pull the #2 coil and plug and assemble them so they are connected to the wire harness and lay them on the valve cover so the outside of the spark plug is grounded and the electrode is away from the plug hole (don't want to ignite the air/fuel coming out). Start the engine and check for spark. I suspect you won't find any.
 
#21 ·
:popcorn:

However I will say I had something similar to this...it was simply the plug connector got disconnected from the injector plug. I got out some tools, poked around in there, and found the injector plug disconnected it self from some hard acceleration. I had just installed the VF2 S/C kit about 3 weeks earlier, and must not have clipped it on the whole way.

Hope that helps...if not, curious to see what you find out.
 
#22 ·
I'm about to go to autozone and get the compression test tool. Are there any specific instructions? Mine is dbw. I don't want to mess up the coils or kill the battery. Also going to pull the valve cover after and post pics as well as check for spark.
 
#25 ·
From what I recall talking to Toyota about Cylinder compression, your numbers are within reason, I believe factory is 210 per cylinder, and I think it is no more than 15 (or is it 30, I wish I could remember that one) for a difference per cylinder.. I find it odd though that you have one that is REALLY high vs. the other three being a bit lower than the one.

I would call Toyota to confirm engine compression amounts.
 
#26 ·
Bboitxc you did double check to make sure all your grounds are clean and connected to the body/trans/motor correct?
 
#27 ·
It's really difficult to see where the other grounds are. But the one on the top left side of the motor was tight and so were the terminals on the battery. Where else are the grounds in the engine bay?

From what I recall talking to Toyota about Cylinder compression, your numbers are within reason, I believe factory is 210 per cylinder, and I think it is no more than 15 (or is it 30, I wish I could remember that one) for a difference per cylinder.. I find it odd though that you have one that is REALLY high vs. the other three being a bit lower than the one.

I would call Toyota to confirm engine compression amounts.
I think I'm going to do the test again. I was having trouble cranking and didn't want to over do it or mess anything up given how long it took to crank.

The "barely cranking" thing seems normal to me (I didn't watch the video, but I performed the compression test last weekend), even with the throttle fully open.

Can you feel any grooves on the bigger lobes of your intake cam shaft?
No grooves on the lobes. Watch the video when you get a chance and let me know if that's normal.
 
#29 ·
That constant noise I guess the hard clicking/hammering is just from me holding the start button. I've held it down almost that whole time. That's why I was wondering if the cranking rate was normal. The times it cranked was from me holding the start button almost from the beginning of the video to the end.
 
#31 ·
It seems more like the sound is coming from somewhere else though and not the starter. I'm really hoping it's just a bad ground and that it only seems to make contact every now and then which is why throughout that starting process only sometimes it would crank over.

Should I do a leakdown test? I've read that it's a PITA to do on this motor to get it to TDC. I know the cat is definitely bad because I also got a P0420 code right when it happened but it didn't return when i deleted the code. Also the strong smell of fuel coming from the exhaust as well. So I'm debating on buying a decat or sport cat from sector 111.

I haven't had anymore progress on the diagnosis. If I can't rule out the grounding as an issue, I think I'm going to have it towed to a Lotus specialty shop soon to troubleshoot the issue as I'd like to get the car up and running for this season.
 
#32 ·
Toyota specs:

Warm Engine
All Plugs Removed
Throttle fully open

Good battery with high cranking speed


203 psi
Minimum: 145 (damn low min)
Difference allowed: 16 psi

--
What year is your car???

Your engine doesn't seem to be cranking well.

1. how is battery? Had it tested and/or put voltmeter on it.
2. grounds to chassis all OK? Gotta check both ends, you know.
Get under car w/panels off an check grounds and look around.
---

Everyone should get the factory shop manual. Small investment for such great info and insurance.

Is that still downloadable?
 
#33 ·
It's an 09. So I'm hoping even with my foot on he throttle and it being dbw, it still opens. I'll check the grounds sometime this week. I'm back in the city so it doesn't help that I don't have too much time with the car. I'll search for a pdf of the service manual.
 
#34 ·
Did you do the ignition test for cyl 2? Those compression numbers show the piston, rings, valves are intact. But raw fuel usually indicates there is nothing to light it off. Not injector... ignition. Misfiring injector would give less fuel, no ignition would dump raw fuel right into the cat.
 
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