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Rb20 engine wont fire??

Baggedrb20
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Baggedrb20 Newbie

Baggedrb20

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Hi guys, have an r32 rb20det swapped into my mazda b2000 - have had it swapped and running for many years. Has the following mods; front mount intercooler, 555cc injectors, wastespark setup, tomei fpr (recently brought as my old one shat itself?) Gt35 turbo, link g4+ atom, megasquirt ignitor, powertune digital dash...

A month ago i took it for a drive, went and put some gas in then about 1 minute down the road it died, tried anything i could on side of road but battery died so ended up towing home to see if i could find the problem

Bit of problem solving, had spark, squirt some fluid in the intake and could get it to start that way only to find out my aftermarket fuel pressure reg gauge the needle was pointing the other way like it had blown up? Removed the fpr and just joined the fuel lines together and fired right up.

So got a new fuel regulator but this one as soon as i turned the key the pressure shoots up to 8 on the gauge but when cranking drops down to 5 managed to get it to run tho so took for another drive but as soon as i turned of truck it wouldnt start. So now im trying to figure this time why wont go, have tried taking out the fpr again but no go this time, fluid in intake manages to get a couple of fires, have taken out crank sensor and spun around to hear clicks from injectors has spark , fuel coming through the line to. 

Could it possibly be that my injectors have gunked up that they now need a clean preventing it to fire as it is kind of my last solution?

Many thanks in advance.

James

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joshuaho96 Veteran

joshuaho96

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6 hours ago, Baggedrb20 said:

Hi guys, have an r32 rb20det swapped into my mazda b2000 - have had it swapped and running for many years. Has the following mods; front mount intercooler, 555cc injectors, wastespark setup, tomei fpr (recently brought as my old one shat itself?) Gt35 turbo, link g4+ atom, megasquirt ignitor, powertune digital dash...

A month ago i took it for a drive, went and put some gas in then about 1 minute down the road it died, tried anything i could on side of road but battery died so ended up towing home to see if i could find the problem

Bit of problem solving, had spark, squirt some fluid in the intake and could get it to start that way only to find out my aftermarket fuel pressure reg gauge the needle was pointing the other way like it had blown up? Removed the fpr and just joined the fuel lines together and fired right up.

So got a new fuel regulator but this one as soon as i turned the key the pressure shoots up to 8 on the gauge but when cranking drops down to 5 managed to get it to run tho so took for another drive but as soon as i turned of truck it wouldnt start. So now im trying to figure this time why wont go, have tried taking out the fpr again but no go this time, fluid in intake manages to get a couple of fires, have taken out crank sensor and spun around to hear clicks from injectors has spark , fuel coming through the line to. 

Could it possibly be that my injectors have gunked up that they now need a clean preventing it to fire as it is kind of my last solution?

Many thanks in advance.

James

If you're confident that you have proper compression/spark timing and it isn't your FPR you can pull the injectors and send them out for cleaning/testing.

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