boost lagg

1_BAD_MK3 · 01-13-2010, 08:08 AM

i fixed my car all i needed was a new battery but now it lags boost when u step on the gas it goes but then it bogs and it starts backfiring why

cre · 01-14-2010, 05:33 AM

Check for diagnostic codes... If you're back firing you're running crazy rich or the timing is off... may be indicative of a knock sensor issue.

1_BAD_MK3 · 01-14-2010, 09:05 AM

how do i check all that and were is the knock sensor located

cre · 01-14-2010, 05:22 PM

http://www.cygnusx1.net/Supra/TechTi...ror_codes.aspx

I just saw your other thread about this matter... After replacing the turbo did you check the spark plugs for fouling and replace them if needed? Also, if the former turbo was dumping too much oil a lot may have accumulated in the IC and piping which will need to be thoroughly flushed out or it may foul new plugs.

1_BAD_MK3 · 01-15-2010, 01:31 AM

yeah i got new spark plugs checked everything and i found out what was making it lagg it was the main relay

two-step-n · 01-16-2010, 07:31 AM

yeah sounds like the knock sensor i had the same thing happen to me i had to rewire the knock sensor to the ecu bad stock old wire

1_BAD_MK3 · 01-16-2010, 07:44 PM

where is the knock sensor located

Green7mgte · 01-17-2010, 03:51 AM

Quote:

Originally Posted by 1_BAD_MK3

where is the knock sensor located

simple search
knock sensor mk3 supra
http://www.toyota-supra.info/forums/...locations.html
in our very own forum!

cre · 01-18-2010, 04:24 AM

The N/A knock sensor is actually closer to the middle than indicated in that diagram; It's not in the same location as the GTE's rear sensor.

01-13-2010, 08:08 AM	#1
1_BAD_MK3 Stock Join Date: Jan 2010 Location: RIALTO Posts: 18 Blog Entries: 1	boost lagg i fixed my car all i needed was a new battery but now it lags boost when u step on the gas it goes but then it bogs and it starts backfiring why

01-14-2010, 05:33 AM	#2
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Check for diagnostic codes... If you're back firing you're running crazy rich or the timing is off... may be indicative of a knock sensor issue. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

01-14-2010, 05:22 PM	#4
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	http://www.cygnusx1.net/Supra/TechTi...ror_codes.aspx I just saw your other thread about this matter... After replacing the turbo did you check the spark plugs for fouling and replace them if needed? Also, if the former turbo was dumping too much oil a lot may have accumulated in the IC and piping which will need to be thoroughly flushed out or it may foul new plugs. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

01-18-2010, 04:24 AM	#9
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	The N/A knock sensor is actually closer to the middle than indicated in that diagram; It's not in the same location as the GTE's rear sensor. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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01-14-2010, 09:05 AM	#3
1_BAD_MK3 Stock Join Date: Jan 2010 Location: RIALTO Posts: 18 Blog Entries: 1	how do i check all that and were is the knock sensor located

01-15-2010, 01:31 AM	#5
1_BAD_MK3 Stock Join Date: Jan 2010 Location: RIALTO Posts: 18 Blog Entries: 1	yeah i got new spark plugs checked everything and i found out what was making it lagg it was the main relay

01-16-2010, 07:31 AM	#6
two-step-n 3" Exhaust Join Date: Oct 2009 Location: mesa az Posts: 51	yeah sounds like the knock sensor i had the same thing happen to me i had to rewire the knock sensor to the ecu bad stock old wire

01-16-2010, 07:44 PM	#7
1_BAD_MK3 Stock Join Date: Jan 2010 Location: RIALTO Posts: 18 Blog Entries: 1	where is the knock sensor located