P0303 p0325 problem car shaking

this a 1996 Toyota Hilux??????????
is RPM at 300? or 800,. 300 is bad idle and alt will fail there.
water level, ,
timing belt? (no way on any 96 !!!)
oil level in 1996, ? ahhh you think pressure is level , gotch.
what country is this. ive not seen all 50 country Hilux.s ever.
its not USA car. so?????

check engine RPM
if dash has RPM this is easy, 800 good, lower bad
cold engine RPM is about 1500 and drops to 800 hot.
is this car EFI or CARB, many cars not in USA are carb up to 2001.
to get best help. for all engine issues.

1. Post your Country, is that so hard,. not one poster ever did.?
2. Post engine type, most cars have 3 engine options,, land-cruisers 12 engines. world wide.
3. List all engine related symptoms, misfire , bogging stalls, and engine shaking or low idle RPM or too high,
4. check all fuse and report the status of the CEL lamp, key on CEL glows, and running stays off. if not insert the check jumper and read the flash codes, CEL on running means the ECU wants to tell you what and why tests fail.. listen to it or fail.

p0171 = fuel system too lean, this means vacuum leak or faulty oxygen sensor

p0303 = cylinder 3 misfire

p0325 = knock sensor malfunction.

p0303 and p0325 - i can see these working together, if a cylinder misfires, it will cause the knock sensor to trip. I would lean towards the coil and or ignition module, along with a faulty oxygen sensor.

Hi Candy,here's a link to the P0171 code.Here's the code P0325. O n the Code P0171.it says it will have a

• detonation (spark knock) which,the first code is causing the second code to go off.

Check the High pressure fuel pump tappet by removing the high pressure fuel pump and pulling out the tappet/cam follower these have a tendency to wear out prematurely also where that tappet rides on the cam it wear out the cam lobe as well. the 2.0T has been there worst engine to date (in my humble opinion) unfortunately.

code p 300 is random misfires
code p 0301,-2,-3,-4,-5,-6,-7,-8 all refer to the cylinder that is misfiring ie p 0303 is no 3cyl misfiring
many people mistakenly believe that a misfire is from the plug, wires distributor when in fact it is more likely to be a problem injector ---dirty tip , low fuel; pressure , blocked tip, injector wiring
using gas conditioner sometimes works but in many cases it dislodges gunk that blocks the tip
At this point I would get a fuel pressure test done to check the pressure regulator , pump and filter condition as everything you describe points to fuel and injectors
AS a point of interest- with ECM controlled engines, the ECM tunes up the engine 60 times a minute to keep it within parameters and the plugs will last the life of the engine
when you want to do a tune up , simply have the fault codes read and fix only what comes up

P0325 Knock Sensor 1 Circuit (Bank 1 or Single Sensor)
P1298 IDM Failure

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Multi-Diag Access J2534

Here's a link to your codes and causes.

All those codes mean a specific cylinder missfire. Start with tune up. Plugs, wires & air & fuel filters.

The intake manifold gaskets are the most likely cause of your problem. Have the fuel pressure tested also.

probably not, you may have the solution, and the cheapest repair solution for starters