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Can i fit an L3 engine type on Mazda Axela which has an LF engine type. The L3 doesn't have the VVT sensor on the top cover but the LF has, what does it mean?

Nothing yet, just wanna replace the engine

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You would need a lot of stuff. I will not say that it is impossible, but you need the complete engine, harness, PCM, and maybe the BCM. I think you will meet a lot of unforeseen problems. The BCM is the gateway to the M-MDS diagnostic system and it stores the VIN, so if you need to take it to the Mazda dealer later, like to get the PATS (immobilizer) programmed this will all be important stuff.

If your car is an automatic, I would venture to say its a 4 speed. The ~2009 L3 5 speed automatic cars have a separate TCM, mounted on the transmission that the 4 speed cars do not have.

Trust me, its a lot of work. I have a L3 M/T car that I put a L5 in. It was a lot of customizing, although the engine basically bolted right in. I use the stock pcm, but I had to change intake manifolds and mess around with the timing cover. The LF, without VVT, timing cover is short and the L5 had the wrong crank sensor mounting. I had to plug an oil passage and rig a shutter valve actuator because the sensors were different.

Posted on Jan 18, 2015


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SOURCE: Cam position sensor error.

It's not enough only rebuild yours engine !!!
After new camshaft position sensor instalation and timing perfectly alignment you must scan the engine control computer and erase these error, actually all errors stocked in memory. The best scantool is VAS device used by VW-Audi dealers, VAG-COM by RossTech (cable + software 704.014, 805.01, ... on CD), or also Bosch KTS 540, 570, 670, ...
RESET = erase errors from the engine control computer memory !
Yours engine control computer don't understand if you only replace damaged sensors with new others! Errors still remains in memory affect engine runing!
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SOURCE: I have a M35 Stagea.

Check your Tappets/lifters from what your describing thats the only thing that can make that noise without a fault code.

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1,3,5,7 cylinder miss fire

Bank1 failure.

my guess, those DTCs off a cheap scan tool>? why not post source and real codes, no lie P0301 is real. but off what?

real engine: Name.

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VVT-i variant??? got VVT? IF ONE SIDE FAILS, misfire there. if cam retarded. if bad, can be 14deg retarded, (huge)

see cam action here.

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if using a full real scan tool that sees all toyota extended DTCs , you might see VVT errors, $20 tools and lame autozoned , blind .

there are 4 sensors there, id bet there are codes you missed!

P0301,3,5, and 7, DTC, ONLY?

bad coil packs? no.

thats the whole left bank, bad.

RF 2-4-6-8

LF 1-3-5-7

so, VVT bad on left bank or coil pack ,

yours has 8 COP coils, so its not 4 bad COPS.

a real mech sees all this in 1 second , online, impossible

nor country. sold.\'

could the timing belt slip only on one side

did you do timing belt service, on time, if not, bingo.

misfire is

bad compression (vvt?)

bad spark , no, not all 4

bad fueling, but there is only 1 maf/map, and one full injection rate there so not fuel mix.related.

here is a tool (most AZ stores clueless)

that reads the enhanced DTC of Toyotas

using a 1996 tool , misses the boat.

but id bet your VVT is bad. left bank.

the real tool might help. here.


P0011 Diagnostic Trouble Code Discussion for
Camshaft 1 Position Sensor Target Performance
P0012 << or this>? P0020/21/22?

the FSM shows the manual tests for these VVT parts.

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Failure to change your oil every 4,000 at most,
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When you do the guides you do the tensioners
Again no oil flow & gunked up

You can see the VVT on scan tool parameters & also
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If you change the upstream O2 Sensors at 100,000,
spark plugs every 3 years & clean the MAF you at least
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The you need diagnostic time with a scanner to start
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How much amph ibattery i can use my mazda axela 2004

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Computer analysis showed these codes... P0330 P1133 P1135 P1346 P1349 P1351 P1354. can anyone tell me what each of these mean?

P0330 Knock Sensor 2 Circuit (Bank 2)
P1133 Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 1, Sensor 1)
P1135 Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)
P1346 VVT Sensor Range/Performance Problem (Bank 1)
P1349 VVT System Malfunction (Bank 1)
P1351 Variable Valve Timing / CMP Sensor Range / Performance
P1354 Variable Valve Timing System Fault

NOTE:Variable Valve Timing (VVT) sensor is also known as camshaft position sensor.
The Variable Valve Timing (VVT) system controls intake valve timing in response to driving conditions.

Possible causes are:
  1. Incorrect valve timing P1346, P1349, P1351 & P1354
  2. Faulty oil control valve P1346, P1349, P1351 & P1354
  3. Faulty VVT controller assembly P1346, P1349, P1351 & P1354
  4. Faulty ECM All Codes
  5. Jumped timing belt All Codes
  6. Faulty Camshaft Position Sensor P1346, P1349, P1351 & P1354
  7. Faulty O2 Sensor (Bank 1, Sensor 1) P1133 & P1135

I’m happy to help further over the phone at

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Very easy to swap the vvt valve,but that will not guarantee to rectify the problem,more than likely it will be the vvt pulley/timing unit,this will involve the timing belt coming off.
The vvt valve is located under the upper timing cover,remove the cover and you will see the valve situated on top of the head,undo the connector and remove the 4 bolts and the valve will come off,alittle bit of oil will come out on removal.
remove gasket and ensure the area is clean.
Re-fitting is opposite procedure,ensure a new gasket is fitted.
Hope this helps

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