Usas Posted August 4, 2018 Report Share Posted August 4, 2018 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 Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 4, 2018 Report Share Posted August 4, 2018 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 Usas 1 Quote Link to comment Share on other sites More sharing options...
Usas Posted August 4, 2018 Author Report Share Posted August 4, 2018 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 Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 4, 2018 Report Share Posted August 4, 2018 So you've already changed the trigger settings to match the non-VVT right? Quote Link to comment Share on other sites More sharing options...
Usas Posted August 4, 2018 Author Report Share Posted August 4, 2018 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 Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 4, 2018 Report Share Posted August 4, 2018 sweet. Lets see the map and log when you're ready. Quote Link to comment Share on other sites More sharing options...
Brad Burnett Posted August 4, 2018 Report Share Posted August 4, 2018 trigger offset may vary depending on which cam sensor you are using. But my 1uz with COP had a trigger offset of -5. Pretty sure I was using the left hand sensor. Quote Link to comment Share on other sites More sharing options...
Usas Posted August 5, 2018 Author Report Share Posted August 5, 2018 Sorry about the delay, attached are the map and logging files 1UZMX83.pclr 1UZMX83Log.llg Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 5, 2018 Report Share Posted August 5, 2018 I dont see any obvious clues in your log. Are you sure there is fuel pressure there? Are they stock injectors? Quote Link to comment Share on other sites More sharing options...
Usas Posted August 5, 2018 Author Report Share Posted August 5, 2018 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 Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 5, 2018 Report Share Posted August 5, 2018 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. Quote Link to comment Share on other sites More sharing options...
Usas Posted August 5, 2018 Author Report Share Posted August 5, 2018 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 Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 5, 2018 Report Share Posted August 5, 2018 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. Quote Link to comment Share on other sites More sharing options...
Usas Posted August 5, 2018 Author Report Share Posted August 5, 2018 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 Quote Link to comment Share on other sites More sharing options...
Usas Posted August 7, 2018 Author Report Share Posted August 7, 2018 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! Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.