20V MK1 Engine Swap New 20V install turns over, won't start

billyboy · 09-29-2007, 01:49 PM

I just installed my 20V ST w/ BT ECU, had MR220V do the harness, installed the harness, double and triple checked all connections, and it won't start. It kicks over, and I can smell gas, but it doesn't start. It almost seems like I have no spark, but everything is hooked up as it should be (I think). If anyone can point me in the right direction, it would be a tremendous help.

Thanks,

Bill

billyboy · 09-29-2007, 09:35 PM

OK, found out what the problem was, it was the timing. Got it started, but now it won't idle. I don't have the alternator or water pump belt on right now because there isn't any antifreeze in it and I didn't want to seize the water pump. Could the alternator not running cause it? If not, what else should I look for?

Thanks,

Bill

sleepermr2 · 09-30-2007, 12:22 AM

no it will run without the alt but your battery is gonna drain really quick.

dont know a whole lot about those 20v. but maybe check for a way to adjust the idle.

billyboy · 09-30-2007, 04:36 PM

OK, I got it to idle, but it was actually by accident. I put the accessory belt on and forgot to attach the vacuum line to the brake booster from the right side of the motor. It idled, but had a terrible hissing noise from the vacuum line. I reconnected it, and the motor stalled. I took off the cap from the drivers side vacuum line on the top of the vacuum rail (large hose) and it idled just fine, but around 1300 rpm which should be around normal when it's cold. Anyone? Any input?

Thanks,

Bill

billyboy · 09-30-2007, 06:23 PM

Found it. Stupid vacuum lines, I tell ya... Thanks for everyones help!

Bill

mr220v · 10-02-2007, 12:28 PM

You have it on the road yet?

billyboy · 10-05-2007, 03:48 PM

Not quite yet. Still trying to figure out why it's cutting out at around 4.5k RPM. I get great power and everything, when it hits 4.5k, it's almost like a fuel cut or something. Any ideas?

Thanks,

Bill

SilverFire · 10-06-2007, 09:33 PM

Quote:

Originally Posted by billyboy

Not quite yet. Still trying to figure out why it's cutting out at around 4.5k RPM. I get great power and everything, when it hits 4.5k, it's almost like a fuel cut or something. Any ideas?

Thanks,

Bill

That's about where the VVT kicks in... maybe it's not advancing the cam?

mr220v · 10-07-2007, 10:43 AM

^vvt engages based on throttle position, not rpm.

mr220v · 10-09-2007, 10:16 PM

Looks like we got it all worked out. Turned out to be a faulty ignition module.

09-29-2007, 01:49 PM	#1 (permalink)
billyboy Old guy Join Date: Jul 2007 Location: York, PA Posts: 15 Thanks: 0 Thanked 1 Time in 1 Post iTrader Rating: (0/0% )	New 20V install turns over, won't start I just installed my 20V ST w/ BT ECU, had MR220V do the harness, installed the harness, double and triple checked all connections, and it won't start. It kicks over, and I can smell gas, but it doesn't start. It almost seems like I have no spark, but everything is hooked up as it should be (I think). If anyone can point me in the right direction, it would be a tremendous help. Thanks, Bill

10-05-2007, 03:48 PM	#7 (permalink)
billyboy Old guy Join Date: Jul 2007 Location: York, PA Posts: 15 Thanks: 0 Thanked 1 Time in 1 Post iTrader Rating: (0/0% )	Nope... Not quite yet. Still trying to figure out why it's cutting out at around 4.5k RPM. I get great power and everything, when it hits 4.5k, it's almost like a fuel cut or something. Any ideas? Thanks, Bill

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Toyota MR2 Message Board	This thread	Refback	09-29-2007 09:39 PM

09-29-2007, 09:35 PM	#2 (permalink)
billyboy Old guy Join Date: Jul 2007 Location: York, PA Posts: 15 Thanks: 0 Thanked 1 Time in 1 Post iTrader Rating: (0/0% )	OK, found out what the problem was, it was the timing. Got it started, but now it won't idle. I don't have the alternator or water pump belt on right now because there isn't any antifreeze in it and I didn't want to seize the water pump. Could the alternator not running cause it? If not, what else should I look for? Thanks, Bill

09-30-2007, 12:22 AM	#3 (permalink)
sleepermr2 Cage Fighter Join Date: Mar 2007 Posts: 468 Thanks: 6 Thanked 17 Times in 17 Posts iTrader Rating: (2/100% )	no it will run without the alt but your battery is gonna drain really quick. dont know a whole lot about those 20v. but maybe check for a way to adjust the idle.

09-30-2007, 04:36 PM	#4 (permalink)
billyboy Old guy Join Date: Jul 2007 Location: York, PA Posts: 15 Thanks: 0 Thanked 1 Time in 1 Post iTrader Rating: (0/0% )	OK, I got it to idle, but it was actually by accident. I put the accessory belt on and forgot to attach the vacuum line to the brake booster from the right side of the motor. It idled, but had a terrible hissing noise from the vacuum line. I reconnected it, and the motor stalled. I took off the cap from the drivers side vacuum line on the top of the vacuum rail (large hose) and it idled just fine, but around 1300 rpm which should be around normal when it's cold. Anyone? Any input? Thanks, Bill

09-30-2007, 06:23 PM	#5 (permalink)
billyboy Old guy Join Date: Jul 2007 Location: York, PA Posts: 15 Thanks: 0 Thanked 1 Time in 1 Post iTrader Rating: (0/0% )	Found it. Stupid vacuum lines, I tell ya... Thanks for everyones help! Bill

10-02-2007, 12:28 PM	#6 (permalink)
mr220v Beams Owners Group Join Date: Mar 2006 Posts: 2,527 Thanks: 13 Thanked 176 Times in 147 Posts iTrader Rating: (11/100% )	You have it on the road yet?

10-07-2007, 10:43 AM	#9 (permalink)
mr220v Beams Owners Group Join Date: Mar 2006 Posts: 2,527 Thanks: 13 Thanked 176 Times in 147 Posts iTrader Rating: (11/100% )	^vvt engages based on throttle position, not rpm.

10-09-2007, 10:16 PM	#10 (permalink)
mr220v Beams Owners Group Join Date: Mar 2006 Posts: 2,527 Thanks: 13 Thanked 176 Times in 147 Posts iTrader Rating: (11/100% )	Looks like we got it all worked out. Turned out to be a faulty ignition module.