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Usas

Storm running 1UZ - No throttle response, 200rpm idle

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Hi All,

I've just finished wiring up a 1UZ into a MX83 Cressida but have run into a weird issue that I could use a hand on. The car is running a Storm ecu, K20 COP and has a R151 gearbox.

I'm using the 1UZ VVTI base map with a few small things modified.

 

The car will run but only barley at 200rpm, it won't rev at all even with the butterfly fully open. It will slowly taper off and die no matter what I do and if I block the isc with the butterfly closed the engine will die instantly. 

I'll start with what I've done:

- Checked both injectors + coils with the test function and they're working as expected

- New 255 Walbro installed and set to run constantly for now

- Engine made very good compression just today which means the timing is all good

- The ISC is a 2pin from purchased from NZEFI

- New plugs and gapped down to recommended gap

- I checked the timing offset and had to sent it to 356 in order for the car to run

 

I found that a fuse I was using had a manufactures defect and was only passing 9V but I don't believe that would've caused any issues. 

Any help or things to check would be very helpful, I'm a little stuck

 

 

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19 minutes ago, Adamw said:

Is it a VVTi or non-VVTi engine?

Can you do a short log and attach that and your map here.  Even if you cant get a log of it running, a log of cranking will still be useful.  Here's a quick guide how to do that:  https://www.youtube.com/watch?v=_P1LRANeO4A

 

Non-VVTi,

I'll get one recorded asap

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1 minute ago, Adamw said:

So you've already changed the trigger settings to match the non-VVT right?

I've copied everything apart from the ignition setup to match the non-VVTi as per the engine specific sample

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Just now, Adamw said:

I dont see any obvious clues in your log.  Are you sure there is fuel pressure there?  Are they stock injectors?

We just had that thought today, I'm going to replace the FPR and look at some new injectors just as I know they're probably tired. 

The fuel system is the original unit but I have replaced all the seals

 

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26 minutes ago, Usas said:

I'm going to replace the FPR and look at some new injectors just as I know they're probably tired.

Dont bother replacing parts yet.  You can easily rule out if it is a fuel issue or not by adding some extra fuel with a can of "easy start" or squirty bottle of petrol etc.

 

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2 minutes ago, Adamw said:

Dont bother replacing parts yet.  You can easily rule out if it is a fuel issue or not by adding some extra fuel with a can of "easy start" or squirty bottle of petrol etc.

 

We attempted that and the car backfired out the intake, would the engine still make good compression with a timing belt slightly off? 

It made 200 - 210psi in all the cylinders

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3 minutes ago, Usas said:

We attempted that and the car backfired out the intake, would the engine still make good compression with a timing belt slightly off? 

It made 200 - 210psi in all the cylinders

I think it wouldnt hurt to check if the engine has been apart recently.  

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3 minutes ago, Adamw said:

I think it wouldnt hurt to check if the engine has been apart recently.  

Will do, I did change the timing belt before installing the engine but had written it off as the compression was good

I'll go over everything and get back to you

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Got it running perfectly last night, thanks for the help all.

Turns out I had installed the Cam wheels on the wrong sides... That meant the timing was out by about 1.5 teeth on both sides

Lucky it's a non-interference engine!

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