420A No Knock senor ?

[Inkdlyfe]

Ive had this car for about i dont know 4 years now and swapped 3 blocks since then and never have actually ran into a knock senor till this most recent block from a 95 motor, ive read that they shouldnt even start or they should go into limp mode? the first 2 years the car was boosted with a AEM FIC the next year it was N/A with stock ecm, then the most recent build was turbo but no aem fic? do you actually need a knock sensor ? or is it ok to run with out it? i mean its been 4 years with out one...

 

[Vegas Smith]

If the car is supposed to have one then I would it. However, some people turn it off when running e85.

 

[Inkdlyfe]

The car at first ran on 93 with methane Injection ? Would they have removed it then too? But even if it was due to fuel set up I swapped my harness and still havnt seen any plug for it ?

 

[silvreclips]

To my knowledge they all had them on the back of the block. It should have never been removed and you can not turn it off with the stock ecu. I would expect it to throw a CEL with it removed.

 

[delta448]

The 420a isn't my area of expertise, but if you are using an engine management solution that allows you to monitor knock directly, I highly suggest you utilize a knock sensor. How were you able to run a turbocharged 420a without using the AEM Fuel Ignition Controller?

Also, I am assuming that you meant methanol injection, and not natural gas (methane).

 

[Inkdlyfe]

To my knowledge they all had them on the back of the block. It should have never been removed and you can not turn it off with the stock ecu. I would expect it to throw a CEL with it removed.

No cell at all to be dead honest with you...

 

[Inkdlyfe]

The 420a isn't my area of expertise, but if you are using an engine management solution that allows you to monitor knock directly, I highly suggest you utilize a knock sensor. How were you able to run a turbocharged 420a without using the AEM Fuel Ignition Controller?

Also, I am assuming that you meant methanol injection, and not natural gas (methane).

Yes I been able to for about a year now I'd say. I think the max I was able to hit was 18 psi on a Walbro 255 and stock fuel set up with a fpr on the return side of the rail

 

[Inkdlyfe]

The 420a isn't my area of expertise, but if you are using an engine management solution that allows you to monitor knock directly, I highly suggest you utilize a knock sensor. How were you able to run a turbocharged 420a without using the AEM Fuel Ignition Controller?

Also, I am assuming that you meant methanol injection, and not natural gas (methane).

And yes well alcohol injection it said

 

[motomattx]

Did the stock 420a come with a knock sensor? if it didnt then obviously you would have no place to plug one in and you would have no cel for the lack of one.

 

[silvreclips]

Did the stock 420a come with a knock sensor? if it didnt then obviously you would have no place to plug one in and you would have no cel for the lack of one.

Yes the stock 420a has one on the back of the block.