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Help needed with a non starting 4JX1

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Hello, i feel like an alcoholic that needs help. I don't know what to do anymore and hope i can get some pointers. I have purchased a 1998 Isuzu Wizard with the 4JX1 engine. The previous owner told me that he started the car, put it in reverse and after about 1 minute the engine stalled and the car refuses to start after that. I read the ECM but it doesn't give any code, also pulled codes manually but no codes. I have done the following,

- cut the wire from the ROPS

- removed all oil hoses that i could get my hands on and gave them a good clean

- removed and cleaned the OPCV

- removed the oil pick up filter tubes in the oil pan

- put in new oil and new filter

- put in a new fuel filter

- removed and cleaned injector

- exchanged ECU with good running car

- checked the timing

- changed o rings on the injectors

 

I tried starting the car with a sniff of quick start. Even with the quick start it won't do as if wants to start. This gave me the idea that i should do a compression test to see if the head has leakes. I don't think that this is the case because of the condition in which the vehicle stalled, just started.

 

What are the things that i noticed on the car.

- when trying to start the oil light stays on.

- hand brake light stays on

- the timing mark on the oilpump is not in the right place. set the timing with the crankshaft and camshaft mark

 

I would really appreciate some pointers of things to check. I have also read a lot of threats.Maybe there are threats that can be recommended to help solve my problem

 

Thanks in advance

 


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