trouble starting

dayton.frey

New Member
Apr 24, 2013
14
0
0
beaverton oregon
Alright I switched throttle bodies on my supra and it fired right up like it should, but tjen as I would come to a stop the idle would drop under 500 and occasionally die. Now whenever I open the throttle and let go it was to die. Is thay my tps?
 

BryanDyer

New Member
Jun 13, 2012
654
0
0
Georgia
well usually when the tps needs to be recalibrated or is bad you can still drive but when you get to like 2000 rpms the car starts jerking really bad
 

BryanDyer

New Member
Jun 13, 2012
654
0
0
Georgia
the tps wouldn't cause it to not start or have trouble starting all it does is sense the position of the throttle and tells the ecu at be your igniter?
 

dayton.frey

New Member
Apr 24, 2013
14
0
0
beaverton oregon
Well my injectors are good, cold start injector is clean and its good as well, and it almost seems as though my fuel system isn't holding pressure. Unless that got fixed when I tightened my csi. I'm starting to think I need to replace my fuel pump
 

Nick M

Black Rifles Matter
Sep 9, 2005
8,894
38
48
U.S.
www.ebay.com
3p141592654;1935511 said:
So fuel pressure is low? What pressure did you measure?

Pressure from the TPS he changed. Based on symptoms the OP listed in the first post, it seems like he has no rest pressure. Which is strange that he hasn't checked it yet.
 

dayton.frey

New Member
Apr 24, 2013
14
0
0
beaverton oregon
The issues with my 7m starting was actually none of the above. The jackass I bought it from put a translator in it with out a wideband, and didn't even wire the shit up right. I have the stock maf and will be removing the translator tomorrow.
 

Backlash2032

New Member
Sep 20, 2010
1,823
2
0
Nebraska
dayton.frey;1934346 said:
Once its started it runs great. Thanks

dayton.frey;1934346 said:
it fixed the issues with the starting issues and from bogging out when I stepped on the throttle

I didn't know it was considered running great when it bogs out when you hit the gas.