Madison - 1988 E30 325i Convertible - Thread
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It’s been a while, glad to see progress. What tune are you going with?
@B C
I am deciding between a 91 and 93 octane Mark D chip- http://www3.sympatico.ca/mdsylva/products.htm. Any thoughts?
To be honest I'm having a hard time finding a step by step guide for 19lb injectors and understanding the differences in the various 19lb injectors iv found:
- https://www.ebay.com/itm/BMW-E30-E34-E36-M20-M30-M50-19lb-injector-upgrade-Genuine-Bosch-/292975028671
- https://www.ebay.com/itm/BMW-E30-E34-E36-M20-M30-M50-19lb-injector-upgrade-Genuine-Bosch-Gray/293400060812?_trkparms=aid%3D1110002%26algo%3DSPLICE.SOI%26ao%3D1%26asc%3D20200116171858%26meid%3Dd1ac16fed34648e68c7afaf7c51828d8%26pid%3D100008%26rk%3D1%26rkt%3D12%26sd%3D292975028671%26itm%3D293400060812%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3DPromotedSellersOtherItemsV2%26brand%3DBosch&_trksid=p2047675.c100008.m2219
- http://maksinjection.com/?product=bosch-0280-155-746-19-injectors-set-of-6
Do the installation of the injectors require anything other then swapping them out?
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@B C
I am deciding between a 91 and 93 octane Mark D chip- http://www3.sympatico.ca/mdsylva/products.htm. Any thoughts?
To be honest I'm having a hard time finding a step by step guide for 19lb injectors and understanding the differences in the various 19lb injectors iv found:
- https://www.ebay.com/itm/BMW-E30-E34-E36-M20-M30-M50-19lb-injector-upgrade-Genuine-Bosch-/292975028671
- https://www.ebay.com/itm/BMW-E30-E34-E36-M20-M30-M50-19lb-injector-upgrade-Genuine-Bosch-Gray/293400060812?_trkparms=aid%3D1110002%26algo%3DSPLICE.SOI%26ao%3D1%26asc%3D20200116171858%26meid%3Dd1ac16fed34648e68c7afaf7c51828d8%26pid%3D100008%26rk%3D1%26rkt%3D12%26sd%3D292975028671%26itm%3D293400060812%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3DPromotedSellersOtherItemsV2%26brand%3DBosch&_trksid=p2047675.c100008.m2219
- http://maksinjection.com/?product=bosch-0280-155-746-19-injectors-set-of-6
Do the installation of the injectors require anything other then swapping them out?
I would personally opt for the 93 octane tune and this set here
http://maksinjection.com/?product=bosch-0280-155-746-19-injectors-set-of-6
At most you may need to dremel new injector retainer slots in the upper portion of the body. I only had to do this once on as set of 33# injectors which had the clip location slightly different than stock. Many sets I have used did not need any modification.
Not required but good practice would be to do a smoke test to check for any intake leaks and make sure your oxygen sensor is healthy. -
I would personally opt for the 93 octane tune and this set here
http://maksinjection.com/?product=bosch-0280-155-746-19-injectors-set-of-6
At most you may need to dremel new injector retainer slots in the upper portion of the body. I only had to do this once on as set of 33# injectors which had the clip location slightly different than stock. Many sets I have used did not need any modification.
Not required but good practice would be to do a smoke test to check for any intake leaks and make sure your oxygen sensor is healthy.Thanks for the advice. Just ordered the injectors.
Are any of the cheap Mark D rip offs worth it?
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I dont personally trust them. They may just be copies of stock chips, they could have checksum errors in the coding, its a mixed bag. The real thing is cheap enough and easy to sell if you ever need to. I wouldnt be surprised if a fair amount of "tunes" that exist are just stock tunes with an increased redline. At least with the MarkD chip you know the timing advance is more aggressive which is where all the power is made.
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I dont personally trust them. They may just be copies of stock chips, they could have checksum errors in the coding, its a mixed bag. The real thing is cheap enough and easy to sell if you ever need to. I wouldnt be surprised if a fair amount of "tunes" that exist are just stock tunes with an increased redline. At least with the MarkD chip you know the timing advance is more aggressive which is where all the power is made.
Appreciate the advice. Ordered the chip and injectors.
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Coco Mats are on my list as a final touch when I have the car back together. How do you like them? I assume there's nothing not to like about them.
They are much better then stock (I hate the stock ones since they get stuck in the pedals) but to be honest for their price point I would expect better floormat templates for the rear seats. Overall I really appreciate the look and would probably still purchase again.
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They are much better then stock (I hate the stock ones since they get stuck in the pedals) but to be honest for their price point I would expect better floormat templates for the rear seats. Overall I really appreciate the look and would probably still purchase again.
That's good to know. Unfortunate about the rear, but since those aren't super visible, that doesn't sound like it would be a deal breaker. I plan on doing black with red accents for the cardinal interior.
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@B C Unfortunately looks like Maks Injection went out of business ... right after I placed an order. Time to find an alternative.
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F401851488594
Now, be wary that fake Bosch injectors exist on Ebay and elsewhere. Normally they are the larger flow injectors that people use in turbo builds but I wouldnt be surprised if China has tackled all popular sizes by now. Performance wise they work fine compared to the real thing, but around 80%+ duty cycle they become erratic in the tests I have seen.
Fake Bosch injectors have Bosch logos and come in Bosch branded boxes even claiming they are made in Germany. For this reason I am wary of lower priced new injectors and feel better buying ~$75 reman. injectors.
be advised
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@B C I had a mechanic friend install the injectors and chip today and we cant get the thing to start up. Any chance you have 15 min to chat tomorrow?
Tune: http://www3.sympatico.ca/mdsylva/products.htm
Injectors: https://www.ebay.com/itm/Set-of-6-OEM-Genuine-Rebuilt-Bosch-for-1987-1998-Jeep-4-0L-0280155710-/254466524692 . They seem to fit fine and have no leaks.
same part number as: https://www.ebay.com/itm/BMW-E30-E34-E36-M20-M30-M50-19lb-injector-upgrade-Genuine-Bosch-/292975028671
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Sure thing, check your PM for my phone number.
my checklist in some kind of order of easiest to hardest:
-press down on fuel injector electrical “rail” to make sure all connections are secure. If any preload exists in the plastic “rail” it may not snap down on all injectors or may pop up
- if the round injector harness connector under the manifold was disconnected (centered below the throttle body near the block) check that it was re-connected
- usually the pcv hose that runs from the throttle body to the valve cover needs to be removed to pull the fuel rail, ensure that is secured and not cracked/leaking
- if the intake boot was removed to gain access to the injector harness plug, ensure the intake boot is on and the throttle position sensor connector on the underside of the throttle body is connected.
- disconnect the positive terminal on the battery and touch it to ground to drain the capacitors, then reconnect to reset the ecu to allow new fuel trims to be established with the new injectors
-pull the fuel pump fuse/relay (either or). Listen for the injectors to fire by feel/sound to ensure they are all firing
-if fuel hoses were removed for removal of fuel rail, remove hoses and verify feed and return lines were not switched
-check to ensure the chip was installed i the correct orientation. If instructions came with the chip it would likely emphasize the correct chip orientation. The EPROM and socket have a corresponding notch on one end that are supposed to match up.
if its installed backwards, bad news, the chip is toast.
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I will go down this list tomorrow, a few of the checklist items that I've crossed off:
Electrical connectors are all secure and in order, according to wiring diagram.
Round Injector harness plug was never disconnected.
PCV hose secure to valve cover(non-original, generic hose, with very slight kink underneath manifold).
No intake boot removal.
Fuel hoses were removed- return hose is about 14" longer than hose to regulator(can't mess that up)
I installed chip according to specifications, however, I tried to start the car prior to chip install with no luck. I figured, let me see if this idles, then install chip.
I checked wiring diagram before installing chip in ecu.
I will check the fuse and relay first thing in the morning, and disconnect the the positive terminal(only had negative disconnected due to very corroded 8mm @ positive terminal). I didn't want to disconnect the positive terminal and have to replace that.
I will also remove ECM for verification, but again, issue was before ECM removal.
Thanks so much for the help, B C. I am an Audi tech from BMW, Volvo and Porsche beginnings. Glad to be here. I may have one or two posts, from the before-time. I am confident to get this car optimal, as I drove it in from Varun's place this morning, with no major issues (albeit a slightly lumpy idle). It does need plugs, which I'll be sourcing from local auto parts stores(Bosch, or NGK, according to forum), and will update with results likely around noon. I want to swap back in the stock injectors, and witness it fire up, after the other tests.
Jamison
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to note: i bought injectors from ebay and received a set with multiple DOA injectors.
also to note: if the car ran before you worked on it, than didnt run after, SOMETHING YOU DID changed the running state, so dont bother looking elsewhere. there are coincidences, but very very rarely.
Dan
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How’s the Red 46 skid plate treating you? I’ve looked into, would be nice for piece of mind, but the M20 oil pan isn’t nearly in the way as an M50 swapped car is.
Its been great. My car is lowered and I've definitely hit it a couple of times. I really like it because it works with the lower bracing I have in place.
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Its been great. My car is lowered and I've definitely hit it a couple of times. I really like it because it works with the lower bracing I have in place.
Do you have the x brace?
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Do you have the x brace?
Yeah Iv got this below: https://www.garagistic.com/products/garagistic-e30-x-brace-cross-brace?variant=31013538824291¤cy=USD
And this on top: https://www.garagistic.com/collections/e30-performance-parts/products/e30-front-strut-bar
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