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Old 11-15-2010, 06:06 PM   #1
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Default Car won't start

After blowing up my last motor at the start of the summer, I've finally installed a new built engine.

The car started with my last setup and now it cranks over but doesn't start. Every now and then it will catch for a millisecond but that it all. Will backfire as well from time to time when a lot of fuel is dumped.

Since the last build...
- I've taken plugged and removed all of the emission solenoids and sensors.
- I've also removed the idle air control valve under the throttle body.
- I've gone from a 90-95 AEM ems (with a harness) to a 97 AEM ems (my car is a 97)

I'm ready to burn this car... please help
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Old 11-15-2010, 06:11 PM   #2
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Since I was the one who sold Alex the AEM and I don't want him to burn his car, I beg for some assistance

We've been communicating and have already checked:

1) the cam sensor
2) crank sensor
3) Timing belt position

What else should he check for?

Thanks guys
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Old 11-15-2010, 09:34 PM   #3
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pics of engine bay

money on coils firing wrong, switch your coil pack connectors
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Old 11-15-2010, 10:06 PM   #4
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I'll post up pics tomorrow morning first thing. I haven't changed anything since the last build in that respect. Running toyota COPs.
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Old 11-16-2010, 09:07 AM   #5
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Here are some pics of my engine bay and *.cal file if anyone wants to take a look, please forgive me the mess...
(mt.net doesn't support *.cal files so its hosted from another site)

http://www.2shared.com/file/AjeHB9Nw/CurrentV119.html?
Attached Thumbnails
Car won't start-img_0132%5B1%5D.jpg   Car won't start-img_0133%5B1%5D.jpg   Car won't start-img_0134%5B1%5D.jpg  

Last edited by Preluding; 11-16-2010 at 09:09 AM. Reason: upload cal file
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Old 11-16-2010, 09:43 AM   #6
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Your car wont start because your intake is capped off - it can't get any oxygen.



You're going to think I'm an *** for that comment, but when I asked for pics of the bay, I was hoping to get pics of the engine as it sits, ready to be cranked to try to start. I would certainly expect that you are smart enough to remove the cover on your turbo intake and replace it with an air-filter. As far as pics of the timing belt, thank you. It will help alleviate a little bit of the pain of people asking for those pics later. What we cannot ascertain with those pics is cam position relative to the cam gears. Your T-belt could be installed perfectly relative to all 3 of the gears, but if the cam gears are installed incorrectly relative to the position of the cams themselves, then you've got a whole different problem. Can you confirm that the 'nub' on the intake cam is placed in the "I" slot of the cam gear, and that the 'nub' on the exhaust cam is placed in the "E" slot of the cam gear? Also would like a pic of the intake side of the engine 'as it sits'.

When you went from your 'last setup' to this current setup, did you do a significant amount of work, or did you just swap ECUs?
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Old 11-16-2010, 10:13 AM   #7
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Yes... I removed the intake cap cover before starting (you're an ***, but I wish it was that easy) my last setup had a 4" intake into the turbo so my air filter and elbow for it is way too big now.

I'm almost sure the 'nub' corresponds with the proper side... but am second guessing myself and am going to go check right now. I do know that the 1st lobe on each cam is facing out as it should though.

I removed the engine and installed a new one since the last setup. I also removed and ground off the IACV portion of the throttle body. Took off all of the solenoids and wiring for the EGR system as well as swapped ECUs.

Will go double check nubs and take another pic of intake side right now.
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Old 11-16-2010, 10:33 AM   #8
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Here are the pics of the 'nub' and intake manifold side of my engine. All wiring in the engine bay apart from the removal of emissions and iacv wiring has not been touched since my last build.





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Old 11-16-2010, 11:03 AM   #9
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found a connector!!!!!!!!!!!!!! near the back of the head attached to car's wiring harness...where does it go...its a 3 wire connector.

see pics

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Old 11-16-2010, 11:25 AM   #10
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I'm 72% sure that's just the EGR Solenoid connector...I'm 100% sure that the EGR Solenoid connector is a 3-wire connector.


There is a vacuum tee on the left side of this photo which is open to atmosphere, can you comment?
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Old 11-16-2010, 11:28 AM   #11
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I think that connector is the one to the OEM O2 sensor Alex.

Sorry but I don't think that's your issue.
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Old 11-16-2010, 11:38 AM   #12
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Isn't the stock o2 sensor a 4-wire square plug??? I have one of those back there too... thats why i'm so curious about this one. its on the same harness as injectors and coils.
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Old 11-16-2010, 11:42 AM   #13
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Quote:
Originally Posted by fooger03 View Post
I'm 72% sure that's just the EGR Solenoid connector...I'm 100% sure that the EGR Solenoid connector is a 3-wire connector.

There is a vacuum tee on the left side of this photo which is open to atmosphere, can you comment?
EGR solenoid connector makes sense then.... so its useless....
...that vacuum line/tee is just a line that goes in the car for a boost gauge(that I don't have yet, I've been using the map sensor as a reference)
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Old 11-16-2010, 12:21 PM   #14
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any chance you mixed up the high pressure fuel line with the fuel return line when you connected them to the hard pipes at the chassis? when you're starting it and trying to give it a lot of gas, do you smell the gas at the exhaust?
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Old 11-16-2010, 12:27 PM   #15
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Yes I smell gas. There is an upper and lower fuel line. Which one is which. Want a pic???
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Old 11-16-2010, 01:15 PM   #16
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ok, well here is a pic anyway.... there is a left and right line as shown in pic, my Feed line is connected to the left and the right line is my return.
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Old 11-16-2010, 01:27 PM   #17
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did a quick search and from what I found, they are hooked up correctly. The front line is the return and rear line is the feed line.
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Old 11-16-2010, 01:58 PM   #18
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Methinks we're going to have to provoke the CAS, Timing, and ECU gurus.
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Old 11-16-2010, 02:01 PM   #19
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Quote:
Originally Posted by fooger03 View Post
Methinks we're going to have to provoke the CAS, Timing, and ECU gurus.
Thank you for all your help. At this point, it certainly seems like a sensor timing issue...although I wish it wasn't.

Please anyone let me know if you need more info. Winter is fast approaching and I'm hoping to put a few hundred miles on the car before snow falls to sort out the bugs before storage.
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Old 11-16-2010, 02:39 PM   #20
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While I'm pretty far from a guru, my car is having a similar issue. Been internet scanning and searching for days. Here's my 2 cents, which may be usless..

1.) From your pic, The upright "I" and "E" marks on your cam gears seem straight up. My manual (Rod's) says install".. "I" mark on the inlet cam a few degrees clockwise from vertical, and the "E" mark on the same pulley being a few degrees clockwise from the "E" mark and line on the head seal plate.

Exhaust cam same, but marks a few degrees anti-clockwise. Again, you pic looks to be vertical (could just be camera angle though).

I've never installed them, so there may be no adjustment to make. Just an observation.

2.) Still have the other EMS? Swap it (pretty sure you thought of it). Was the other engine running the same COPS? I guess what I'm trying to say is swap back to what you can to what worked before.



Good luck. Dont't burn it (yeah it's crossed my mind to..).
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