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Post by gwnwar on Sept 11, 2017 3:52:02 GMT
If you are going to ask a question about a connector. Let us know were in the harness it is and post a pic of it with the wires spread so we can see were they go in the connector and the colors of them.. A pic of the side without colors doesn't help.. This is wiring for USA car not many differences between this and UK cars.. www.mellens.net/mazda/mazda_miata_extra_manual/1999_wiring.pdf
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Post by R2S on Sept 11, 2017 7:36:30 GMT
If you are going to ask a question about a connector. Let us know were in the harness it is and post a pic of it with the wires spread so we can see were they go in the connector and the colors of them.. A pic of the side without colors doesn't help.. This is wiring for USA car not many differences between this and UK cars.. www.mellens.net/mazda/mazda_miata_extra_manual/1999_wiring.pdf Noted but I thought the colours were visible in the photos I posted albeit photos were not the best.
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Post by R2S on Sept 14, 2017 15:34:39 GMT
Another half day in the workshop, under bonnet fuse box and emissions located. Emissions pipework will be tidied and shortened once everything is up and running, plan to put a shroud round emissions electrical fixed to rad mount to prevent water ingress now its in a more exposed position. Final two clips arrived today so rear to front pipes (petrol feed and return 13mm, emissions 13mm and one brake pipe)all located on separate brackets (no direct fixing to trans tunnel).
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Post by R2S on Sept 29, 2017 16:30:06 GMT
Wiring connected up, fingers crossed, turn of key ............ nothing
Checked the earths on the aftermarket alarm, re fixed, turn of key and engine spins over great but no fire, checked for spark and all is good. Continued to crank but not the least hint of a fire.
Checked for fuel on plugs..........nothing, nor is there a smell of fuel at the intake despite lots of pumping (there should at least be a smell here despite it being injection shouldn't there?).
Thinking pump may not be working like a fool I took off the pipe from the feed (one in middle of plate on top of fuel tank) I now smell of fuel, assume my dousing means pump is working so Im stumped.
Any ideas?
Should add I followed the advice of Mk1 owners and connected the fuel rail up with feed to front and return from rear, a quick re-read of Mk2 manual looks like this may be wrong way round (not clear in manual) anyone with a mk2 either rebuilt or not stripped can you have a look, fuel feed pipe (if Mazda) usually has a yellow band round it and let me know what you have?
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Post by Stiggy on Sept 30, 2017 8:11:38 GMT
When you look at the tank the pipe in the centre of the pump access plate is the pump out. Pump out is connected to the fuel rail nearest the bulkhead. OPPOSITE END TO MK1. When you look at the fuel rail on MK2 the pressure regulator is at the front end of the engine. The tank return pipe usually has white marker on it and is connected to the regulator. There may be variations as US spec cars only have one fuel pipe I believe (no return).
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Post by R2S on Sept 30, 2017 9:42:31 GMT
When you look at the tank the pipe in the centre of the pump access plate is the pump out. Pump out is connected to the fuel rail nearest the bulkhead. OPPOSITE END TO MK1. When you look at the fuel rail on MK2 the pressure regulator is at the front end of the engine. The tank return pipe usually has white marker on it and is connected to the regulator. There may be variations as US spec cars only have one fuel pipe I believe (no return). Thanks Stuart appreciate the confirmation re feed and return, will try to get to workshop tomorrow and give it a go reversing pipes.
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Post by gwnwar on Oct 1, 2017 17:07:27 GMT
Stuart that looks like a 1.6 fuel rail in pic with fuel into the front end.. In UK as I understand it there were 2 different models in '98 one the flip headlamps 1.6 and one in body headlamps 1.8. I could be wrong it does happen sorry. Fueling is all from the front of the fuel rail. In 98 (99>00 in USA) 1.8 the fuel pressure regulator is in the tank and the 2 things 1 on rail and 1 on body inner fender are fuel pulsation dampeners.. Wish I could find a UK shop manual. Please let me know your thinking on rails. Never to old to learn..
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Post by R2S on Oct 1, 2017 19:37:50 GMT
george
Im pretty sure I have feed on wrong connection, i.e one that runs from front of rail (I did this based on guidance from others with Mk1's) looking at the manual its not very clear but a few views of various youtube vids Im pretty sure sure feed connection is one on right when viewed from front of car looking back. Both connections are side by side, one next to block and other next to plenum basically in a line parallel to front firewall and radiator.
The right hand connection then runs to back of injector rail and then runs from injector 4 thro to injector 1. Didn't get across today but will report back on this important milestone (assuming it starts) in my build asap.
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Post by Stiggy on Oct 1, 2017 21:33:59 GMT
All we need to know is that the outlet from the pump will always connect to the end of the fuel rail without the regulator on it, the return pipe always connects to the regulator. As far as I know MK1's have the FPR at the opposite end to MK2's so it would be best not to refer to the pipe locations in relation to the bulkhead, or from which end or side of the engine you are looking at, otherwise we will all be confused. I do not understand "on the right looking back from the front of the car" The rail runs front to back not left to rightFor those wondering what the FPR looks like see here; www.mx5parts.co.uk/fuel-pressure-regulator-mk2-p-3683.html
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Post by gwnwar on Oct 2, 2017 5:47:59 GMT
RS2 please post a pic or two of you fuel rail setup..
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Post by R2S on Oct 2, 2017 13:00:09 GMT
Here you go, not my injector system but a picture of the same one I found on the inter web. As you will see pipe connections are side by side albeit other connection is hidden in this photo one sits next to block and other sits next to plenum chamber in a line parallel to the radiator The rubber pipe you can see cut connects to a metal pipe (part of the system) which then runs to the rear of the rail. Will report back on progress next time I visit workshop.
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Post by R2S on Oct 4, 2017 13:48:14 GMT
Fuel pipes reversed and we have fire only problem is car won't run, revs to 3-4k then dies, I can keep it running at 3-4k revs on throttle but not for long as no exhaust beyond two into one pipe and noise is substantial. To be fair I haven't secured all electrics and earths so accept that some of the electronics might not be getting full earth. What I have noticed is red battery light goes out when initially starting but then come on as engine is about to die (clearly connected). Other thing to report, and query whether others with 1800 has any problems, is lack of clearance between chassis (bulkhead frame) and exhaust. Clearance is only about 1mm and there won't be any once transmission tunnel is fitted. In long term won't be a problem as I will be having bespoke exhaust made to take to side of car but for IVA standard two into one pipe will have to be persuaded to give a little with the help of the trusty ball-peen.
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Post by tojeiro on Oct 4, 2017 16:59:45 GMT
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Post by R2S on Oct 4, 2017 19:07:46 GMT
That is strange bearing in mind mine is a 98; it does look like my engine is further back than yours I'll take some measurements tomorrow from back of cam cover to bulkhead and post.
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Post by gwnwar on Oct 5, 2017 4:37:58 GMT
Try loosen the center nut underside leave nut still threaded on the engine mounts jack engine to raise just off the sub.. shake it some and let back down mounts may have been bound twisted.. BFH will help with clearance too.
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