Parts Cross Reference

PART

Location

Part ID

Lotus Part Number

GM Part Number

Part #

Note*

Price**

Electric Control Module (ECM) w/o prom

Above RHS Fuel tank

Note PROMS differ for SE and non SE ECM's

1228707

A910E7015

1228707

1228708 (weatherproof)

1228707

1228708

1

-

Direct Ignition Module 

Right side wall engine bay

Module:10498D13

0198;8343;8E06-01

A910E6940 (assembly-includes all 3 parts)

10467214

10497771; 10472401;

D1927A

2

$217.26

High Tension Coils

Right side wall engine bay (need 2)

coil: 10497771

10477602

D555

3

$58.59

Mass Air Temperature (MAT) Sensor

Non-SE: air filter airbox, under right fuel tank board

SE: side of chargecooler housing

AC 12v

1268

P.E.O. 62

A910E6927

25037334;

25036751

213-190

4

$37.00

Barometric (Baro) Pressure Sensor

Metal plate above right hand rear wheel arch

couldn't see due tolocation

A910E6935

16006833

16006833

5

$68.75

Manifold Air Pressure (MAP) Sensor

Metal plate above right hand rear wheel arch

couldn't see due tolocation

A910E6934

16009886

213-183

6

$85.00

Throttle Position Sensor (TPS)

Rear end of throttle spindle #4 throttle body)

80671 E0988

or

80671 E1709

A910E6961

17106680

547052

7

Unknown

($112.05 Lotus)

Oxygen (Lambda) Sensor

Exhaust outlet pipe after turbocharger before catalytic converter.

3 wire leads+ground on sensor body. No other ID

A910E0322

Bosch # 0 258 005 704 009 will work. PN on box 15704. Splice in or match up connector.

8

$54.00

 Flywheel Sensor

Top of the clutch housing)

no markings

A910E6938

1103703

1103703

9

?

Knock Sensor

Cylinder block)

10456056

A910E6937

10456019

213-91

10

$65.50

Engine Coolant Temperature Sensor

Inlet water jacket)

not legible (print too small!)

A910E6928

Recommend Lotus

unknown

Idle Air Control (IAC) Valve

Inlet manifold)

59523 A2398

or

59523 G1709-

A910E6942

17111826

217-411

11

$95.75

($96.57 Lotus)

Fuel Pressure Regulator

Rear end of fuel rail

T44T or TA3T no other markings

A910E6950

17112394

217-381

12

$113.00

Vacuum Pump

Front of engine (Note revised harness cars have an electric pump in the old engine relay compartment)

19308A

A910E9027

7844039

 

7841443

215-106

or

215-103

13

$279.00

 

$202.00

Primary Fuel Injector

Inlet manifold

6039 5235364

0118 5235364

(Rochester Products numbers)

A910E6941

Part Number SR 370

Source= RC Engineering (800) 525-4118

14

$57.00 each

Secondary Injector (not on Non-SE Models)

Intake Plenum

6039 5235435

C910E7007F

Lucas Saturated Type190cc/min- No part number- source= RC Engineering

14

$168.00

Charcoal Canister

Right rear engine bay

numbers obscured

A910E6944

easy match up when removed

unknown

Vehicle Speed Sensor (VSS)

Right rear wheel hub

not inspected

A910E6939

Lotus factory part only. Not released to aftermarket

Frequency Valve - Wastegate Control

Near turbo

Delco Remy 1849138

A082M6420

Lotus factory parts only. Not released to aftermarket

Exhaust Back-Pressure Valve (EBV) Vacuum Capsule

Exhaust pipe between catalytic converter and muffler

Delco Remy

A082M6421

Throttle Jacking Vacuum Capsule

Top of engine near throttle linkage.

1896068

A082M6421

*Notes:

1. ECM (Preferable over Lotus sourced part)

These units are the OEM part numbers, with 1228708 as the preferred part due to its waterproof case. The only difference between the two is the case. Most original units can be remanufactured or used to satisfy the core charge on the replacement. Prices vary depending on source. ($150-$200)

 

2. DIRECT IGNITION MODULE (Preferable over Lotus part - they will only sell the complete coil pack!)

This was a match up by application to the multi-port ignition used by GM in its Pontiac Quad 4 engine.

 

3. HIGH TENSION COILS (These are exact OEM as used by Lotus)

Direct match GM part number on Lotus OEM part.

 

4. MAT (Preferable over Lotus sourced part, and cheaper too..Lotus part = $66.85)

This was a match up by application to the multiport ignition used by GM in its Pontiac Quad 4 engine.

 

5. BARO SENSOR (Preferable over Lotus sourced part, and cheaper too..Lotus part = $131.98)

Match up to GM part and GM application.

 

6. MAP SENSOR (Preferable over Lotus sourced part, and cheaper too..Lotus part = $167.81)

Match up to GM part and GM application.

 

7. TPS SENSOR ( Recommend Lotus sourced part…Lotus price = $112.05)

This was a match up by application to the multiport ignition used by GM in its Pontiac Quad 4 engine.

 

8. OXYGEN SENSOR (Preferable over Lotus sourced part, and much cheaper! Lotus price = $256.33)

These are pretty much generic match-ups. Bosch makes several which can be used. Just make sure the leads are long enough and that the

new sensor has 4 wires. You can either match up the old connector with a new connector and install, or splice the new sensor wires onto the old connector.

 

9. FLYWHEEL SENSOR (If obtainable using Delco number, would use Delco unless Lotus sourced price was comparable)

This was a match up by application to the multi-port ignition used by GM in its Pontiac Quad 4 engine.

 

10. KNOCK SENSOR (Preferable over Lotus sourced part unless Lotus price was comparable)

Match up to GM part and GM application.

 

11. IAC CONTROL VALVE (Recommend Lotus sourced part…Lotus price = $96.57)

Match up to GM part and GM application.

 

12. FUEL PRESSURE REGULATOR (Preferable over Lotus sourced part…Lotus price = $152.01)

Match up to GM part and GM application.

 

13. VACUUM PUMP (Preferable over Lotus sourced part)

The numbers given are close matches. These parts are being phased out due to obsolescence. Some modifications maybe required.

 

14. FUEL INJECTORS (Preferable over Lotus sourced part)

The originals are Delco made and flowed out for the Lotus. Originals can be obtained from Lotus at substantially more cost. The above RC equivalents are exact matches.

** Prices 

Prices are as of March 2000 and are meant to be used as a guideline only.

A great thank you to Tony Grasso for researching and putting this cross-reference data together.


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