Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
-
Latest | 0 Rplys
Go Back   Automotive Forums .com Car Chat > Nissan > Nissan Cefiro | Nissan Maxima | Infiniti I30 | Infiniti I35
Nissan Cefiro | Nissan Maxima | Infiniti I30 | Infiniti I35 Excellent platform and the good ol' VQ30DE and VQ35DE engines.
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools
Old 06-19-2010, 01:29 PM   #1
chuck's
AF Regular
 
Join Date: Aug 2004
Location: stokeville
Posts: 294
Thanks: 0
Thanked 5 Times in 5 Posts
engine quits after throttle snap 2000 Maxima

2000 Maxima dies after the throttle has been snapped open.Vehicle has 220,000 kms and plugs were changed at 120,000 kms.Vehicle has 3.0 ltr engine.I am wondering if the fuel pressure is the culprit?There was a code PO171 which was cleared and has not come back since.There have no other codes appear.Vehicle would start cold but would not get over 2000 rpm.Mass air flow sensor was changed and has cleared up the cold rpm issue.How do you check the fuel pressure?Do you need special adapters to check the pressure?On the fuel rail I did notice two vacuum operated diaphrams.Which one is the pressure regulator?Help to fix this problem would be appreciated.
chuck's
chuck's is offline   Reply With Quote
Old 06-20-2010, 01:33 AM   #2
Nahkapohjola
AF Enthusiast
 
Nahkapohjola's Avatar
 
Join Date: Nov 2004
Location: Helsinki
Posts: 1,653
Thanks: 0
Thanked 12 Times in 12 Posts
Re: engine quits after throttle snap 2000 Maxima

Quote:
Originally Posted by chuck's View Post
....would start cold but would not get over 2000 rpm. ...
Mass air flow sensor was changed ...
2k rpm: 'Safe Mode' ceiling. Typically activates when MAF or rpm -signal missing... Also can be bad tranny rpm/temp sensors.

'New' MAF possibly semi-dead, try another.

1st Check Charge Voltage at batt AND at computer, std 14.2V.

Run self diagnostics, test TPS.

Fuel hose stiffens when pressure is up. Nonissue here.

Platinum plugs last 100k, std 5k. Do change.
__________________
.

Maxima INFO pages was deliberately trashed (!?) by Cardomain; dont goto http://www.cardomain.com/ride/748507

There was a special Car Electronics -page http://www.cardomain.com/ride/748507/14

Last edited by Nahkapohjola; 06-20-2010 at 02:05 AM.
Nahkapohjola is offline   Reply With Quote
 
Reply

POST REPLY TO THIS THREAD

Go Back   Automotive Forums .com Car Chat > Nissan > Nissan Cefiro | Nissan Maxima | Infiniti I30 | Infiniti I35

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 07:41 AM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts